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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)
1 g1 E. S6 A* o% P4 f- #include <ESP8266HTTPClient.h>
2 i5 w8 P, ^5 a# y. x, {1 ?( E. e4 a - #include <ESP8266WiFi.h># x | L: g& Q/ M
- #include <ESP8266WiFiMulti.h>
/ h: e9 c8 \, k+ K - #include <ESP8266WebServer.h>
1 ]/ X' J; @( A3 _3 x! J - #include <arduino.h>
2 y5 @9 W; _' V3 i - ESP8266WiFiMulti WiFiMulti;
& d; D" H( Z8 R8 } - ESP8266WebServer server(80);
6 O: ^2 l0 o' r4 x$ e7 {$ _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 [1 p6 V4 E% o7 ` y1 U$ T" X+ G - ADC_MODE(ADC_VCC);# o2 P3 U. a6 B3 k
- void setup() {
) `6 q3 f( E. C! v/ n0 N i' U( `5 } - Serial.begin(115200);: `# G5 I) j, P9 F3 j
- Serial.print("\r\n\n");) @* \" b0 N7 U \. b
- pinMode(2,OUTPUT);' K' b6 D2 q% ^4 ~
- // WIFI4 o/ u, Z. c* Z* w" {3 ]0 f
- WiFi.mode(WIFI_STA);; g* i( X' z1 v5 G/ D) c" G3 z
- WiFi.hostname("Sparkle");9 O; o4 B5 B0 r' Q: U+ b D
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 |, g( g* E, Z# Z - int tryNum = 15;
* e" z( m# C2 A9 N5 z- d) l - Serial.print("Connect WiFi");6 d4 C7 V/ O M
- while (WiFiMulti.run() != WL_CONNECTED) {% |2 Q0 @, d* U3 i
- digitalWrite(2,0);/ ^0 s8 ]" v7 D; j: S7 B- H
- delay(200);% }+ k+ w% K. L* i9 s
- digitalWrite(2,1);
" y( W$ c# S' T9 G2 G/ a6 L - delay(300); @& p: b# K i. O% a! t
- Serial.print(".");/ ], l* Z; x1 U& t. `
- tryNum--;
- Y J4 {5 q$ U9 f2 _, [6 h - if (tryNum == 0) {
1 H$ J/ ]( w. X1 q - // 1min
' Y) ~6 Y9 r0 W4 ]0 P- }1 C - // ESP.deepSleep(60e6);
, X7 \' d! I* q* V - ESP.deepSleep(0);* G, L/ H8 K) A+ M
- }
& Q% \( G2 w2 x b9 ~ - }( ~* {: j3 ?6 S, F( e0 h$ o; Z
- Serial.print("\r\n");
: z. G6 Q6 r' |9 g4 _ - digitalWrite(2,1);6 [) I6 T; a, H; z1 J4 L' s
- Serial.print("IP address : ");
2 v$ l3 v; y( _( R" E: H - Serial.println(WiFi.localIP());+ u% E: ]2 \4 j2 R! O) \8 L
- server.on("/", HTTP_GET, [](){: x3 m( k- O8 Y: q& Y; R4 B
- server.sendHeader("Connection", "close");
$ s/ z$ W m6 L2 e - server.send(200, "text/html", serverIndex);
, |! m( e/ ~8 j- M, F: [ - });
, q% B2 c, f' V; C [ - server.on("/update", HTTP_POST, [](){
6 Y9 ~" Q* g. s' P - server.sendHeader("Connection", "close");
0 i4 i' p, W2 W J+ l - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( ^, }' }8 c: L$ Z* K! S - ESP.restart();' ^! u* D/ o+ G! H0 ~. F
- },[](){' Y: s S0 q# v) U, e% c' I8 z
- HTTPUpload& upload = server.upload();
( m1 c2 U/ D% \ E0 G - if(upload.status == UPLOAD_FILE_START){3 o* ?+ ?# U. m; _! A
- Serial.setDebugOutput(true);
1 l* q. x3 q: l! S - Serial.printf("Update: %s\n", upload.filename.c_str());' \8 b5 v/ ]# ^, S$ S
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 U& o% f$ i! ^* A# o+ H8 z. P
- if(!Update.begin(maxSketchSpace)){' Z; E5 S2 x- F3 O* \; s0 v3 g
- Update.printError(Serial);1 W( v2 {5 ]/ d5 D+ H) A
- }
- @5 p T6 `; ^7 z- G3 O - } else if(upload.status == UPLOAD_FILE_WRITE){
- V* B- ~0 I$ Z7 a3 m# q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 \- {% e- Y M/ a& d+ I) } - Update.printError(Serial);
, j+ F: u2 h# X# p - }
+ k7 J& ^5 u( T$ e - } else if(upload.status == UPLOAD_FILE_END){
. T9 }9 X ~ j) L) D* N - if(Update.end(true)){: ^5 A% F, T0 ^8 D' d
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; q5 X. O9 e& ` - } else {' y4 w! B* w# _7 R4 |1 s
- Update.printError(Serial);
/ Q: R) w& g9 Y# i# |7 F - }, g( g+ b/ o' O5 h
- Serial.setDebugOutput(false);& J9 u+ P2 ^: V) `
- }) K5 y% K" K' `% [6 y9 d, [
- yield();' K' K. Z. X/ H* t G6 a
- });# C; }3 {# B+ V/ f( Z! g
-
, N5 o& u& X7 K o; t% G3 C3 l - digitalWrite(2,0);: R& G4 W& \/ \0 H
- mainAction();
7 b' r# N/ i0 o7 f: x1 v - if (digitalRead(0)){8 r0 _3 b4 e5 J* l
- ESP.deepSleep(0);
* ~: D, D2 y+ O3 ~' F - } else {
+ `; d7 S8 [9 o - server.begin();, Y/ c# D/ N9 z' `' s/ ]
- }- Y0 C7 [8 w) W, S
- }- a- Z2 h; d3 o4 R% Y
- void loop() {7 W7 K6 H$ o, U* {( l
- server.handleClient();* Q- i6 t% t/ l4 k
- delay(1);
' K' P2 S( J& ?) r# { - }
& S# Q" x/ N! R3 S9 J! j4 d - String doGet(String url){
4 B3 z+ Z* G, m$ o" Q - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 R! `: _& \* L3 ? - HTTPClient http;8 b: A2 @5 S# _, W0 g% W
- Serial.println("[HTTP] begin...");. m5 x/ C N) x, z6 m( d) U
- if (url.startsWith("https")) {
' M: k/ ^+ G: n- B; K \* n# q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; Z0 [2 e @! o8 Z) }; z - } else {
/ l, l& u1 q0 k. d - http.begin(url);
* a! Q8 m, Q# g# A! d) [+ x- ~ - }& B0 D, D% l6 l3 D
- Serial.println("[HTTP] GET...");0 @. d+ }+ F3 q' |
- int httpCode = http.GET();
M. K" I& |; P, h& c - if (httpCode > 0) {3 U8 k- [( R6 R1 \6 k: |7 j# U
- Serial.printf("[HTTP] code: %d\n", httpCode);" u4 v' A/ b7 q
- if (httpCode == HTTP_CODE_OK) {+ k5 e, _+ j* N7 w
- String payload = http.getString();
2 _' h+ _2 ^' d* [2 A- v - Serial.println(payload);: k$ t4 ]0 b+ b$ s' Z& O7 ~$ i& b
- Serial.print("\r\n");
0 ~6 U4 e; D( m! D0 I0 h* N - return payload;
- }* c0 r. U# f' N+ o9 I - }1 z# E0 ^* K' R) z: j
- } else {% p3 A7 q: s. r2 B8 r4 k- q3 d5 U
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ t9 K5 ^# g( q! j% {5 \
- http.errorToString(httpCode).c_str());
6 y, H {" ^: N: ~$ K - }7 Q. j! Y6 y9 }. e# c/ L( F
- http.end();
p& w" z5 d: N - return "";3 p; T) Z t' e8 ^/ U9 G, q
- }
$ w j0 `! ^2 @" n - }- H3 \. N1 d) G- w
- void mainAction() {
4 r* S- @2 Z _8 W$ r& b$ \% e8 E - // 发送请求. C0 @2 e( D, [; S, t0 a; i
- doGet("http://google.cn");
% V: C8 P7 i. G U, m5 r - }( i; u; b% ^3 X0 D
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