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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)
. q# x, D& z1 p% X4 ]1 v% d- #include <ESP8266HTTPClient.h>8 J6 W/ U" q: J5 d' v
- #include <ESP8266WiFi.h>8 L( P5 A4 `1 x1 _; Q% s( l
- #include <ESP8266WiFiMulti.h>! a1 M$ F. e M& W# z
- #include <ESP8266WebServer.h>
/ J `4 K( ^, u F& ^ - #include <arduino.h>5 ?$ r) N6 X6 d) `5 p
- ESP8266WiFiMulti WiFiMulti;( B/ O9 J8 x1 T: I1 P8 a' s$ H
- ESP8266WebServer server(80);
1 n0 u5 q' {3 [7 i - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* _- P* `9 |) f: H1 e/ z - ADC_MODE(ADC_VCC);
# s2 n2 u6 b! ?! V - void setup() {' r2 j Q2 S" P: H$ p) M
- Serial.begin(115200);! N9 G6 |8 ?# b3 O2 Y% `! v& ^
- Serial.print("\r\n\n");& b3 B6 b5 I, i8 p1 [& ?: k
- pinMode(2,OUTPUT);. `8 C9 ]6 T0 Q. ]* {. A [' l
- // WIFI. F& W. l2 F: R# f% T8 e' P2 H+ J) S9 n
- WiFi.mode(WIFI_STA);
9 }2 D' e) P9 `: t, s! F& ^. w - WiFi.hostname("Sparkle");7 D4 { n6 h: W. t( o( q5 B
- WiFiMulti.addAP("wifi ssid", "wifi password");
5 _( s% X+ F. p4 k: @+ o, P) ]3 m - int tryNum = 15;
8 z" v; X6 U( [' m! B - Serial.print("Connect WiFi");7 W* }, q. x! g8 b# [) l3 v
- while (WiFiMulti.run() != WL_CONNECTED) {( {' x; B( h; ]
- digitalWrite(2,0);
; _/ \7 n7 d2 d" A - delay(200);
% |4 {% d5 s& u& b$ e' `0 j8 `8 W - digitalWrite(2,1);! H4 W, D% K/ w3 j* z5 D/ u) y: B
- delay(300);& y7 m4 H5 Z3 U# x; L3 s' A
- Serial.print(".");
2 I; i. M' [0 k' n/ @ N - tryNum--;
' E2 i- h- n5 s0 h+ T; T - if (tryNum == 0) {) `3 l. v0 P; o- p/ Q% c/ o
- // 1min4 s' M. K( ~8 w0 ^1 b. n
- // ESP.deepSleep(60e6);+ ]& C, D3 v i; |9 Y
- ESP.deepSleep(0);
+ f+ z* l# K; |, {2 D9 L. E - }
0 ]/ U: ?, n* w0 c! @ - }1 ^! I X3 l9 N/ m& G& X1 `
- Serial.print("\r\n");1 O0 _+ p8 a0 o& H1 T4 P3 G; b+ e
- digitalWrite(2,1);
& c( `' H6 K& \/ y - Serial.print("IP address : ");0 M% s! f0 O6 Q* m
- Serial.println(WiFi.localIP());# q8 R% J$ G7 ^* w% b/ }' D0 R
- server.on("/", HTTP_GET, [](){
' v& V* m: k9 R" t9 n; [: n# b - server.sendHeader("Connection", "close");7 D8 u) y: w# L0 l
- server.send(200, "text/html", serverIndex);
" G1 Q; E% n- f$ h# n - });
( {3 j+ i( i3 M0 _( a - server.on("/update", HTTP_POST, [](){/ T1 m/ t. W% f3 u6 o& a3 Y
- server.sendHeader("Connection", "close");
& m& G, f# i8 d) p3 y7 x - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 n; O7 B' h" t z) e- i2 @
- ESP.restart();
" ^2 y8 |$ `+ V& X+ b - },[](){' i$ `" ^4 M8 Z6 v
- HTTPUpload& upload = server.upload();
5 A. l t- P3 x# X( {6 X5 \ - if(upload.status == UPLOAD_FILE_START){
6 N. e4 {! F2 V3 j7 g - Serial.setDebugOutput(true);
6 A& ~" Q, U* Y& y7 v - Serial.printf("Update: %s\n", upload.filename.c_str());9 D( z. g- f$ L9 O. `& z% X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ [# g) f" m z; I/ A2 J! t - if(!Update.begin(maxSketchSpace)){
0 x" K v5 @: x - Update.printError(Serial);, G, e4 A: K" z/ q& D
- }
6 X ?' \4 d3 g0 ?( u+ t - } else if(upload.status == UPLOAD_FILE_WRITE){
7 m, J& |% ^5 w8 V9 Y) W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ T7 N: N4 ^* U - Update.printError(Serial);- C" {* P4 k) f6 W
- }
9 u4 v* u: s! ~) ~* f8 x - } else if(upload.status == UPLOAD_FILE_END){2 N: O" G' x2 S3 b3 ~0 m, e
- if(Update.end(true)){* a4 w: o Z9 {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 S' S" w% X: i8 U8 |; \8 M) k
- } else {3 Z! ~) K3 B5 a" y. B+ z5 h9 T
- Update.printError(Serial);7 ?4 I5 I3 g/ r/ l5 b: q2 J2 C
- }
n" ]4 q8 Q6 B+ v! Z9 i - Serial.setDebugOutput(false);! d; i: M3 J) D; ~, P( M s
- }
" J# A+ s$ e. t# T% P9 \* }0 k3 U - yield();# z. g1 N5 i4 B! w+ ~7 i* j
- });
% ?; W3 T4 e) P$ |4 M, c4 w0 E7 }& Q - $ A# R, S. w* u4 ?
- digitalWrite(2,0);& ?/ ^* o, i- D$ a2 M% m5 t
- mainAction(); S5 H- N: h4 d |5 E
- if (digitalRead(0)){+ i" n" j( U8 `$ Q% {
- ESP.deepSleep(0);
- j! K! y2 ]) ^9 d$ v$ q2 T+ y0 n - } else {( F1 T$ y" ^* ]' x
- server.begin();
5 ~) i6 n+ @. H) M+ q/ d - }& f* M9 @3 O3 n1 t7 q7 i
- }
+ _. F) D+ U/ q. _( v# J( [1 y - void loop() {8 k' O" `- s2 J' q( F& r [
- server.handleClient();0 m0 v4 e1 k4 A3 }
- delay(1);) `( \1 V5 A" R' q; S @" s
- }: M$ p1 [8 R( Y) M
- String doGet(String url){; p9 c& R& V# d* B
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 a3 G ]$ D W; d0 o - HTTPClient http;
6 l% K0 r. b5 K8 \/ e. n& A - Serial.println("[HTTP] begin...");
& v3 A: g% K' [) D5 b y - if (url.startsWith("https")) {1 G b) p0 \4 I, U7 z2 l+ g7 @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* T& _' ]3 X1 ~8 C+ p' I; @
- } else {2 T/ {/ m! a. w* D/ Z4 m. a' y: W
- http.begin(url);/ V% {. e4 G# n( B5 u9 Q L
- }
. ]2 s9 [8 u, r: n6 h - Serial.println("[HTTP] GET...");5 J/ S% S, u/ c% n- j, y% O
- int httpCode = http.GET();7 J& \& a* c) ~0 z" k; |0 Q
- if (httpCode > 0) {; w$ q7 C# g& i0 k5 n/ ^1 e* e
- Serial.printf("[HTTP] code: %d\n", httpCode);' J8 U; `1 F1 }3 v5 p; z4 @% q
- if (httpCode == HTTP_CODE_OK) {
/ K) q2 B* R p+ r) s2 K+ g$ O - String payload = http.getString();
, f; m/ r! M" W0 r9 M - Serial.println(payload);+ s# A7 F2 H5 G( Z) `
- Serial.print("\r\n");
5 f4 O* k2 {2 w8 B( l - return payload;
+ v6 R" y2 L2 H/ B. M - }
: j- h) u' Z2 _( U( F2 d* W0 B - } else {
8 _8 P8 B" V# X0 k$ ?5 C - Serial.printf("[HTTP] GET... failed, error: %s\n",
" j* Y2 N8 \) x/ C7 k - http.errorToString(httpCode).c_str());- g) U0 z; w, m; ~! f* M
- }1 ]9 H+ {5 z; y5 K
- http.end();1 x7 M1 [ b) e1 \
- return "";8 T! K3 G$ [- g m/ y# I
- }
1 B; W2 Y B% s) ]% E3 ]& y% s- c - }& y0 @& r8 E0 L" Y/ d& j
- void mainAction() {
4 c3 O: N# j* N1 w. L* @ - // 发送请求& Y$ ~5 U! d" l" F! R
- doGet("http://google.cn");4 N, `) z! ^" S. h" z5 o0 w# R
- }( ` _ N9 D: j/ X; @
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