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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)
4 m! i8 H2 n3 Y, D- #include <ESP8266HTTPClient.h>
% v; \1 e" o4 [; g; Q" U q7 ]6 N$ O - #include <ESP8266WiFi.h>
' _; A* d, q7 t: V( v - #include <ESP8266WiFiMulti.h>8 s* Z# l8 x# }3 B9 f: Q5 `) O
- #include <ESP8266WebServer.h>$ m6 \) f' K6 l
- #include <arduino.h>
& |; h# L* M" m' t; P - ESP8266WiFiMulti WiFiMulti;& l6 d6 h. e0 k& p: C2 v& d" [
- ESP8266WebServer server(80);% I, r& W* T3 r1 h
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" Q5 E6 ~2 T$ `3 L - ADC_MODE(ADC_VCC);
! [$ x0 d& @' K* Y5 i: W6 @ - void setup() {
" Y N, R% Y4 H1 I1 _8 g( ^' N8 n% P - Serial.begin(115200);6 }8 R2 w) @! P* Q* L5 Z
- Serial.print("\r\n\n");
$ {( d8 H+ j0 `. m - pinMode(2,OUTPUT);8 G' k% w" k: S( C
- // WIFI
1 x% ~+ [ f1 V* L3 z) O0 o0 a - WiFi.mode(WIFI_STA);2 ^1 N5 {0 _2 [9 U
- WiFi.hostname("Sparkle");
& {5 U5 b$ f+ t7 t& d' o* S - WiFiMulti.addAP("wifi ssid", "wifi password"); {9 H+ k. X& {* _' H# H1 L! Y
- int tryNum = 15;2 s* l" S; D* E j* |5 B$ ]
- Serial.print("Connect WiFi");& ^& z' a2 ~' |! _2 F8 a
- while (WiFiMulti.run() != WL_CONNECTED) {
$ p0 G$ r r" Y# ^) o& H - digitalWrite(2,0);. I4 E V$ j% r
- delay(200);& e, K' M1 Y& c' y+ B$ l3 U+ A) G
- digitalWrite(2,1);
1 N$ }, v& |" q0 [( K4 [ - delay(300);& _9 z; y& N4 z, L% ^
- Serial.print(".");; I1 Z' i7 W Z8 b* H' [8 k
- tryNum--;& [ g8 Q! P$ F; V# u$ v
- if (tryNum == 0) {7 ]6 I8 @% j: d
- // 1min
: r2 `& v7 T. |1 a0 R9 e7 ` - // ESP.deepSleep(60e6);9 e1 s$ y6 q0 h& J3 |, C
- ESP.deepSleep(0);; ~" a2 E; C+ r5 E
- }
* o, [% B! T, K - }
3 o; G6 V0 W5 y9 c. _/ b5 ~ { - Serial.print("\r\n");
9 m% k; R" x2 U# H# u0 v - digitalWrite(2,1);8 Z6 ?# ?# X! E ^/ L. `$ T
- Serial.print("IP address : ");
& w- c' I. s; {0 S( \! k - Serial.println(WiFi.localIP());
0 A2 H* y- ?1 @0 y - server.on("/", HTTP_GET, [](){
: N4 N, ?. j4 Z: {! n+ H - server.sendHeader("Connection", "close");
0 m3 Q `( t( v - server.send(200, "text/html", serverIndex);. j" u- n/ H+ {
- });- p, {: u7 E0 {6 o2 y
- server.on("/update", HTTP_POST, [](){4 R- D* E) @) M0 m# b. j5 j
- server.sendHeader("Connection", "close");/ u' Y5 `6 y' n. X4 M6 b" @
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; y1 t v; q8 H6 H4 f
- ESP.restart();6 q5 k/ X7 @) [
- },[](){) P$ r% C ^- L$ w" Y
- HTTPUpload& upload = server.upload();# w, x$ a$ {6 e) {
- if(upload.status == UPLOAD_FILE_START){* X) C( X. s0 r
- Serial.setDebugOutput(true);" H; d, Z" G4 R
- Serial.printf("Update: %s\n", upload.filename.c_str());
B+ p2 c" G5 z& Q/ r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ g; l$ U* e+ N - if(!Update.begin(maxSketchSpace)){
; t9 z" A* J# w. n' |9 r - Update.printError(Serial);
2 Q A1 s1 ^6 O' n - }
! q! A* F! M' @5 @! Y/ h- Q - } else if(upload.status == UPLOAD_FILE_WRITE){& x$ W. i0 g6 r: D' Z; ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( T! E0 n+ ]9 D+ D& b2 [7 t2 J - Update.printError(Serial);0 E0 T* ?* H' x Q/ L
- }" p, u1 @. h8 n6 [" I
- } else if(upload.status == UPLOAD_FILE_END){# Z) V a% R- U t6 u) c
- if(Update.end(true)){
" x+ x+ v, V" P5 O( _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! M" j% q8 ^. Z+ ?. m - } else {
; E; ^; l6 ~/ v. K7 B$ b. C - Update.printError(Serial);8 j) d$ k$ q, S$ ?4 Z- |
- }% G- U6 A+ q9 W4 o
- Serial.setDebugOutput(false);
5 ^% t# c& |: ?2 D" d" E - }
1 [! s4 I) q8 g6 V" J& y - yield();5 ^% n% \6 ~) N8 }7 ^
- });3 |1 t2 t/ |$ H# X% ^* c
-
$ K8 ?/ i3 s. M4 Z+ A - digitalWrite(2,0);
- c, g$ a& s6 @! J - mainAction();0 C0 q2 P: c4 A$ Y% ?; r) Y
- if (digitalRead(0)){
/ I; ?3 C- } [: Y - ESP.deepSleep(0);
8 _- O8 y$ f$ p* _$ e - } else {% f' h6 d( N2 p; d. _
- server.begin();
" ?9 v) h/ r" a, r' T* o9 E - }
( h$ F) p1 |$ O9 \! E ~ - }3 ]% Q. a7 ?! W f
- void loop() {
3 |6 G% b; |1 B) Z$ A - server.handleClient();. y0 F s1 Z" ?
- delay(1);$ p L% j, [6 O
- }
3 \: Y6 a5 \) U2 l - String doGet(String url){/ c) J3 v7 s9 u1 W+ |0 b
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 m1 H: r4 z( @- P2 F - HTTPClient http;9 j: W2 x5 Z% q
- Serial.println("[HTTP] begin...");# j8 S$ |0 M. Q2 Z# f
- if (url.startsWith("https")) {
) M2 }% h7 C- i6 m& g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 w' L! R5 N/ |' t - } else {
7 `# q: N# x1 C) D - http.begin(url);: s1 j5 Q9 i1 W2 e& k0 q& I
- }
& T; {8 f+ j/ f4 g2 n - Serial.println("[HTTP] GET...");- G6 j' t% H; t# r: g3 d
- int httpCode = http.GET();: Q6 ?$ P$ O# H- r5 f) \
- if (httpCode > 0) {* h& \* _- e; k9 ?( G
- Serial.printf("[HTTP] code: %d\n", httpCode);
3 ?5 I6 U# s$ h+ v7 T& { - if (httpCode == HTTP_CODE_OK) { d) m# h L q" |2 B) o
- String payload = http.getString();
: j% V! c5 t0 f. `8 X8 L - Serial.println(payload);
; A, I M" G$ C$ ~: K: @ - Serial.print("\r\n");
8 ]9 t4 X5 \6 }+ ^$ p% M - return payload;
* c2 ~$ n, l# k: V0 }7 L( [# M - }; J4 X3 ^/ P) @( `/ T8 H4 s
- } else {
9 F: z# I* b3 D3 Z! f - Serial.printf("[HTTP] GET... failed, error: %s\n",
4 d5 E5 x8 x: u$ k1 S7 V+ J - http.errorToString(httpCode).c_str());3 `+ ]- P7 S9 q8 v& G% v" ]
- }( k2 w; j3 q2 C3 e; Q1 _
- http.end();
# E8 ~7 n. A( C4 Q# ]2 a7 q7 ] - return "";
) c/ G9 |3 P& p4 b - }% D9 i( D: J; a1 n g, g
- }0 [8 s4 D7 S/ Z( v- l- X- M
- void mainAction() {- n0 _+ l6 P! T" a# I) g! P7 R9 F& Z
- // 发送请求
" C: w6 S3 U8 T" \* i - doGet("http://google.cn");
$ G' o# w9 g- j: f8 m3 j - }8 q3 l' m; p: P9 R/ m& k
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