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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
! T) W+ w" V/ ]7 S8 K/ V# v+ z' P/ {- #include <ESP8266HTTPClient.h>
- q4 p' q' z7 n6 |( m. x* w - #include <ESP8266WiFi.h>6 ]9 Y0 ^- S8 j$ R$ b. f6 |, A( E8 F
- #include <ESP8266WiFiMulti.h>" \, _9 F0 @" N' d6 S$ {% B
- #include <ESP8266WebServer.h>
2 P7 j$ t) E6 w. ]5 }! e - #include <arduino.h>+ n+ n/ E# m; W y. e
- ESP8266WiFiMulti WiFiMulti;
% `# N* b5 ^# } @: R8 N4 \ - ESP8266WebServer server(80);
( `6 R1 C# |/ e! q m( p/ ?3 }" | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# S. B. c( U7 y% o - ADC_MODE(ADC_VCC);
3 p7 e- N, R- S( W2 S) J+ U# I' y - void setup() {
: J, L; i9 w$ J6 C - Serial.begin(115200);
8 e$ t, b/ ^' y3 O, B: I - Serial.print("\r\n\n");
9 y# D+ ?8 ^3 ~9 |( s3 q6 } - pinMode(2,OUTPUT);
9 m U" i0 S5 c' D: u - // WIFI4 @5 w6 J9 k6 I( ~. a e
- WiFi.mode(WIFI_STA);
3 s" M6 L. L+ X1 t6 b; @4 W - WiFi.hostname("Sparkle");
8 z+ h1 {! S0 l$ |$ b - WiFiMulti.addAP("wifi ssid", "wifi password");
& n" f- }( i: v2 O6 X8 K - int tryNum = 15;- S1 W- \2 ~2 V/ h; [
- Serial.print("Connect WiFi");
- A4 H; R& K- ]9 d! S- E' Q - while (WiFiMulti.run() != WL_CONNECTED) {- j3 Y1 k& `5 r% [
- digitalWrite(2,0);
0 m) s! I7 s, C" P2 x. z+ | - delay(200);
9 X- `' K- o4 F" Q; ^0 }" |- h8 Q - digitalWrite(2,1);/ T" P4 x" s9 l, W& c' T5 @
- delay(300);
9 R: ^$ W, Y, H/ H' ^% ] - Serial.print(".");
# {! J3 j7 r, J; K; w! m( s - tryNum--;
* v9 Z. b2 r7 ]& ^ - if (tryNum == 0) {
+ q. S# u; X( [# O/ B0 {# l - // 1min: X% k7 E$ r# T4 V6 t4 `! Y5 T+ Y
- // ESP.deepSleep(60e6);
7 }6 L5 y! n! x - ESP.deepSleep(0);
; `2 t# L7 y+ k - }0 q* u' v, l1 I( _& L! r+ _! y% b
- }* R/ k; C- [+ ?9 C; b
- Serial.print("\r\n");
: `8 y J( Z- o4 n& D8 y - digitalWrite(2,1);
4 K g# T: V/ ^ - Serial.print("IP address : ");# z! u/ v. x' L* J
- Serial.println(WiFi.localIP());
1 p1 @! b$ X6 s, H/ P* `( J - server.on("/", HTTP_GET, [](){
5 i- m; Y2 C0 K" W. ]7 v - server.sendHeader("Connection", "close");+ E6 Q3 q5 s8 _8 m8 g; c8 `; K
- server.send(200, "text/html", serverIndex);
2 a+ D1 \* J4 U# R7 q% R J$ m - });
. s' o; D" Y4 f$ K( A1 ?" x6 X7 B; Q/ @ - server.on("/update", HTTP_POST, [](){# b! d, M0 _2 D: K- Q
- server.sendHeader("Connection", "close");
- H+ c& i, n7 ^; W. Z) _, H. B8 K8 O - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- g7 B( e$ u, d1 a7 u+ x - ESP.restart();$ k2 a/ x1 b* g6 k
- },[](){7 R1 J+ J/ L8 B. z0 d
- HTTPUpload& upload = server.upload();
) L, [. B. z; i. ] T - if(upload.status == UPLOAD_FILE_START){6 s C! r: {9 G) i: z$ {2 z4 M" b% f* j
- Serial.setDebugOutput(true);9 V) ]8 O" t2 I: l: ^
- Serial.printf("Update: %s\n", upload.filename.c_str());* k" Y% m1 M2 ]! w5 E: y: \7 M
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; {3 U% }2 W% ?0 a( H- u - if(!Update.begin(maxSketchSpace)){7 m0 v9 ~" B4 g8 U" c, }
- Update.printError(Serial);
+ W% U, c1 C* g - }/ h3 @2 R7 {3 E" o) V0 I
- } else if(upload.status == UPLOAD_FILE_WRITE){
1 z8 C/ S9 {; p3 J! `/ a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, M* O- _8 \# Z$ `3 s" ? - Update.printError(Serial);
2 M$ h$ K1 q1 v/ j9 {) ]; v - } R# M& n9 ]* h9 \9 Z
- } else if(upload.status == UPLOAD_FILE_END){! ~; D8 @; x1 K9 r
- if(Update.end(true)){+ n7 F! w* x* \- l# {- [3 B( _$ A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- K0 H% d, X4 M- n, D
- } else {
& ]7 ~9 c7 v& c( I, l - Update.printError(Serial);- L5 f& u: o, b9 D& n, s ?
- }; e2 o7 Q) K7 Z3 R6 X2 F+ n: Z3 W
- Serial.setDebugOutput(false);6 m/ t* W- d* j1 @: L3 ^
- }
7 |2 D1 J6 {8 h0 {; ^ - yield();; h7 \- R( c) H
- });$ K' C: @9 ^. o$ V; i, E
- 4 g8 a$ Z8 X& I
- digitalWrite(2,0);
( I; [" a$ o# q4 B# Z+ K" u! n - mainAction();. u3 w# a. N* U$ M4 C7 S( f' p
- if (digitalRead(0)){+ K7 a5 T6 H3 T2 {% M
- ESP.deepSleep(0);
/ \) b A& O- z, X& G) r - } else {( r4 \ v' ~% z/ \
- server.begin();
/ I6 Z% S& j6 r# f2 h! { - }
?; G" c/ c% u8 O. c( I% s9 | - }
& |. p3 p; t3 M, J! M* n - void loop() {
1 O6 h# a( }- r; B, v5 W R* w - server.handleClient();' R. P$ F8 ?7 p& E4 w2 N
- delay(1);
& ~' _5 n& P* Y9 y3 z" A - }* X% c6 k; r/ X R
- String doGet(String url){7 _! b; H2 `; U
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' r8 L) x+ s1 _# D4 D - HTTPClient http;: a3 n X9 \; J2 J
- Serial.println("[HTTP] begin...");( i2 F. X: K* H! Q! i" D
- if (url.startsWith("https")) {
, E8 y% g- A$ T+ d0 G5 i( x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% F: [' b: j6 @
- } else {
9 ?9 b/ S; I! D - http.begin(url);
4 W1 @+ X x' [6 ^$ k1 ? - }- Y& _* C1 e5 N8 ~) X
- Serial.println("[HTTP] GET...");
$ ^. y2 ]. A; |) N8 } - int httpCode = http.GET();
+ }$ }/ i% A* D* A4 e, T - if (httpCode > 0) {
3 c, T+ g' L6 }) O% ]' [ - Serial.printf("[HTTP] code: %d\n", httpCode);
! Y% m( p4 _8 y$ W$ i - if (httpCode == HTTP_CODE_OK) {
% w7 @* ]5 F. u/ t+ Q- u) o' ^ - String payload = http.getString();
; }0 Y. F; p7 `6 X1 p1 j. R8 u; M - Serial.println(payload);
6 G/ l* Z: @/ d - Serial.print("\r\n");" Y4 u& \; ^# P
- return payload;8 t% s. U' ^) H! A5 E9 e- L7 N% U" ~
- }
4 S/ U) J7 F. u# I h+ K - } else {6 z0 O1 H! E, v( s, t" A
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ [ @6 R; z- A2 x' z) l$ [# w
- http.errorToString(httpCode).c_str());
. T! \5 ^5 ]6 C# G1 U; D7 L - }
6 n4 U7 U. F$ |' K C; {! k. M - http.end();
6 J/ u" L$ `1 X' o$ R" r( h6 z - return "";" ^3 |+ L# M4 ~0 c! g2 Q6 T# t# V9 H
- }9 f# V, h0 d0 J4 E" V! \! Z
- }
' K2 c. P7 h5 W3 R+ o - void mainAction() {
3 Q: k- Z; @0 h7 l! o - // 发送请求
6 Y% Y1 M3 |+ r9 m$ N |$ U. e - doGet("http://google.cn");
4 M0 a2 o0 L: D( [, ^0 u! Q3 l+ F - }
. b4 ^) @9 k$ \! ~& |
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