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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)
' X# b. [. h' a, R2 }; g- #include <ESP8266HTTPClient.h>
, m1 w# e! I: N) U# [5 }, t' x/ n. E - #include <ESP8266WiFi.h>* g2 p; w% d$ [6 l1 f: C& n
- #include <ESP8266WiFiMulti.h>
0 Y9 W3 s7 u# Z) C4 b2 I9 b5 m- u - #include <ESP8266WebServer.h>4 I. \: X7 p" p7 _5 f
- #include <arduino.h>, k! f7 z E/ x: r- w" d
- ESP8266WiFiMulti WiFiMulti;; F8 P4 o, F* ]( v
- ESP8266WebServer server(80);
7 E( m% l- x4 W2 D4 ?% O/ @ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* N( [ x0 @$ {1 Q: ~, K7 C9 @
- ADC_MODE(ADC_VCC);* a r$ E0 u2 E' [ H9 \
- void setup() {
$ C2 i. Y+ o. \" I1 [2 o: { - Serial.begin(115200);3 ^$ A( S* U6 |- ]$ H7 G2 o
- Serial.print("\r\n\n");2 _. p! s) M2 r* E
- pinMode(2,OUTPUT);
, ]% d' Q0 S# B$ c3 \7 M - // WIFI
3 c. U% e3 ] S& e) F4 X% L" M, J - WiFi.mode(WIFI_STA);
4 q8 L1 D( ^- |6 O: a" x - WiFi.hostname("Sparkle");! ~. d; t( O+ l& G% F& s
- WiFiMulti.addAP("wifi ssid", "wifi password");
- m" h f5 M1 b% j% q - int tryNum = 15;
4 H' F# Y R: y: `! l0 N - Serial.print("Connect WiFi");
9 Q5 t) Q. K7 t. O1 @- V - while (WiFiMulti.run() != WL_CONNECTED) {( G( l8 O+ {# H. t3 G& A' v+ ~& _
- digitalWrite(2,0);
) ]4 }$ e' D6 t1 b - delay(200);
7 s5 R! q& b% z. g3 k - digitalWrite(2,1);! e7 _ ~. i+ H: P
- delay(300);
: N: j3 v* J1 G, F1 ]; G - Serial.print(".");+ s' l2 x! H3 F( R1 m% r7 S
- tryNum--;
# i( d4 X$ n. v9 a& P5 c - if (tryNum == 0) {
' h+ n( G, h( V. J" U - // 1min0 ?" d5 F& h- y( c% @; R% \
- // ESP.deepSleep(60e6);! g3 G. K- e2 d9 k/ o/ ^& |) q: U" k2 }0 p
- ESP.deepSleep(0);! t% d" ~+ y9 n9 k. h# `& W/ M
- }
) K2 N- f, j, f - }- ?6 H2 L* ~/ t- `7 B5 m
- Serial.print("\r\n");
0 `1 t3 A: N' ^ U - digitalWrite(2,1);
4 }" X! T, o: T9 o8 n - Serial.print("IP address : ");
9 Q9 [! t3 u! U- }( i - Serial.println(WiFi.localIP());8 h3 a- N- ^4 I# l5 Y+ o
- server.on("/", HTTP_GET, [](){( `9 ]7 ?$ F4 c' P
- server.sendHeader("Connection", "close");. w( W* d b- ?- m
- server.send(200, "text/html", serverIndex);
5 C' J# m. h3 o- Y$ J$ S - });
& X5 ^- F1 y' U' S( s! D; ` - server.on("/update", HTTP_POST, [](){) F: z0 e f6 x6 H9 @7 h3 F
- server.sendHeader("Connection", "close");' {! v! e) l x3 W* y1 S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
5 }8 Q& i7 u( l c1 U - ESP.restart();
F7 y' k$ U4 K4 d, A - },[](){# w% \, v% @: K
- HTTPUpload& upload = server.upload();! S" K7 ]2 v. b4 @. W! ^
- if(upload.status == UPLOAD_FILE_START){! n) y0 c. `- \$ d1 i6 g! ?( i& z" P
- Serial.setDebugOutput(true);
5 `# j2 [* Q9 X; | - Serial.printf("Update: %s\n", upload.filename.c_str());
0 {0 Y0 O0 F# `0 ]' o) @7 O; g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 X% v4 U$ c' h. ~
- if(!Update.begin(maxSketchSpace)){
. {" `4 U* F4 M8 q, X7 A - Update.printError(Serial);! k) S; Q8 d6 a( h$ R3 c$ H& H& v
- }5 {& B5 C8 J* F N; I0 C
- } else if(upload.status == UPLOAD_FILE_WRITE){
6 X! b1 L- B1 D+ `$ C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, m0 \; q5 w( _% N
- Update.printError(Serial);* S. Q# ` {# J3 X' [4 C, b
- }, g9 v" C0 E" ~# a
- } else if(upload.status == UPLOAD_FILE_END){
" l/ _4 J0 Y/ Q! r# @ - if(Update.end(true)){
! ^! j5 [/ v Z8 O8 ]( A" S: R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; N% C# l0 {/ i$ r" |0 N
- } else {
0 R4 t4 ]' l+ P D+ @' c- U - Update.printError(Serial);1 \* m/ a; n$ K/ ^
- }
* }+ M% E' D2 R; o, Y - Serial.setDebugOutput(false);
# C- Y/ [ X+ ]5 v3 G - }8 H8 |& g- y3 K2 {7 x' K) A; ~
- yield();% n- _2 @9 S3 g( f% b
- });% v2 z$ E0 u" k+ N1 q$ f" E
-
3 ?4 m4 Q& d8 A a( d# U. } - digitalWrite(2,0);
1 E0 s3 `" ^% c1 `7 _ - mainAction();
# Z2 B: r6 h S' K& s0 ?( J - if (digitalRead(0)){, M& d1 i# p4 J$ U+ k0 d
- ESP.deepSleep(0);1 F# P* T6 Y/ Q3 X4 r
- } else {
* I$ F% S: z$ _3 q( }( O/ p4 h - server.begin();
+ W/ i. m' C$ e/ i& Z- L - }1 Q) s7 k& Q! Z$ L
- }+ X- D# X7 i, i! S7 \7 g
- void loop() {
& u7 b2 C: g; L. q% ~6 z. D - server.handleClient();; M/ N4 \& r* g" ]+ n* m' e+ F# t
- delay(1);5 [4 \, I2 W: Z: ]
- }, x* }5 n6 z5 g% v/ |: ^$ ]5 v- I! q
- String doGet(String url){
6 k/ I+ ?! {7 K% J& Y; S - if ((WiFiMulti.run() == WL_CONNECTED)) {
' I0 c1 I; m: _5 T/ f1 ~' D8 K9 r - HTTPClient http;9 ?& Z! k: `$ }- O' d% b- T" f
- Serial.println("[HTTP] begin...");
" G3 H0 z* _# K' N3 S - if (url.startsWith("https")) {
2 z7 z7 w, a G/ {# z2 f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ |3 x/ n1 D& t% h) I
- } else {
5 n1 f" A( M3 B9 ?/ b - http.begin(url);
' u! ~6 @" [" m. _( J8 D$ e - }: F; P2 W$ M$ P" v1 x3 f" t) {
- Serial.println("[HTTP] GET...");9 W0 S! a2 x3 E# d
- int httpCode = http.GET(); Q- B& q$ ^3 V: ?0 D2 B8 c+ |9 g
- if (httpCode > 0) {
, r/ o0 e1 _$ f - Serial.printf("[HTTP] code: %d\n", httpCode);" b7 Q& T) ]8 E2 n6 {
- if (httpCode == HTTP_CODE_OK) {& `% x6 q+ h( Z
- String payload = http.getString();4 y% ?8 y) v) ^! \0 Z* D: I0 P
- Serial.println(payload);# F6 S9 I5 Z- x8 U g4 Q
- Serial.print("\r\n");
2 o) ^% B. ]+ l; N; { - return payload;
3 d7 H+ m1 `/ J* e5 h3 u - }! N" [( P# f6 I& {$ E- U" Q+ s
- } else {
2 v9 w5 J, y2 T - Serial.printf("[HTTP] GET... failed, error: %s\n",: H: |! l- ]) i: v
- http.errorToString(httpCode).c_str());$ T9 f8 k8 ?- G
- }
+ Y/ L* K- n& ]7 Q - http.end();
1 m( ~! N: U1 j) Z7 `" E4 F% U - return "";# _3 [! e" R, {
- }
8 l" D! p3 O# ^ A& _0 l6 e - }6 f. x# b% F) ?* B0 R% `
- void mainAction() {/ U3 \1 j" C2 \
- // 发送请求$ I1 o6 y# u! H3 K N
- doGet("http://google.cn");
! V- s' j& Z' U' F% K1 t2 f# J - }
+ {4 t' U- ~8 P9 _ u" O% c- V# i. o
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