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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): b$ y5 w5 T8 J* h! ]( n( s- U
- #include <ESP8266HTTPClient.h>
/ i4 U. z& x1 Y0 e9 [ c - #include <ESP8266WiFi.h>4 i$ o0 E3 K8 n' H- P
- #include <ESP8266WiFiMulti.h>
% j4 ~7 {2 }/ Q u/ u - #include <ESP8266WebServer.h>
' j M4 G& e" ?$ B - #include <arduino.h>
! I/ A d2 m. f3 a1 K2 G - ESP8266WiFiMulti WiFiMulti;
$ p" Q T( [! P7 f - ESP8266WebServer server(80);, ^& @' j& O. D% z" m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 D% ] W& b; F, h8 _$ D - ADC_MODE(ADC_VCC);
9 l, ?/ R& w2 h$ u - void setup() { y g; F- B* S7 `1 m6 D
- Serial.begin(115200);, F7 o |- ]- D1 U4 ]- K
- Serial.print("\r\n\n");7 k- a, {7 {! B& j4 U6 B
- pinMode(2,OUTPUT);- p0 I; t5 T1 Z1 D0 @
- // WIFI, W3 p$ R" f- z- N5 S) T
- WiFi.mode(WIFI_STA);
* p9 t8 D- ^9 W& r7 e& s - WiFi.hostname("Sparkle");
1 g" o5 i: ?) C2 m, { - WiFiMulti.addAP("wifi ssid", "wifi password");
# g! p( ]! [1 ~' K7 y$ k8 T& }9 ] - int tryNum = 15;
6 z/ P0 I& `6 {1 g - Serial.print("Connect WiFi");
8 _" H* ^: Z1 ?: X0 H, d3 J9 n - while (WiFiMulti.run() != WL_CONNECTED) {
e* y4 v# s/ Z, F - digitalWrite(2,0);
- F. _" ~- {; S; S/ U8 J+ ? - delay(200);
* ]2 A3 G$ }; }% e - digitalWrite(2,1);, s/ l+ I# j& G, h: j5 n' O- h
- delay(300);, U {0 ]% s& }
- Serial.print(".");- o) x* M6 C3 M7 z' U$ O
- tryNum--;- P& i0 r" y F- d b; \) B. c. i
- if (tryNum == 0) {
9 H; h F3 A* r' U - // 1min
8 T" N: K2 x; s( J3 z* z: `$ _5 I/ q - // ESP.deepSleep(60e6);
9 [# M) {) t! X+ x' G - ESP.deepSleep(0);" x9 j! Y3 j, G
- }5 d( u4 `* O1 E7 ^5 ]3 B7 Y
- }
7 L0 E: n- l8 j; \" v) l0 V$ W - Serial.print("\r\n");
% o0 `1 ^ T4 S: B5 C3 A - digitalWrite(2,1);6 M& i9 A/ \( C: G4 [
- Serial.print("IP address : ");
6 `2 G9 p8 h8 a' E P# g' q3 z% X! U: G2 E - Serial.println(WiFi.localIP());7 U5 i: f# P# Y8 R4 y2 d. ~4 Q
- server.on("/", HTTP_GET, [](){ G6 G) C7 n* C$ ^
- server.sendHeader("Connection", "close");4 [, a) Q" h) ]& B: t8 h4 c
- server.send(200, "text/html", serverIndex);# g+ y5 u; s, F1 _
- });% m: X9 X) |7 K% O" i
- server.on("/update", HTTP_POST, [](){
' I; D; x- a9 o- z& _ z - server.sendHeader("Connection", "close");
& |4 L0 O$ T8 t9 ]3 H( b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
^3 N& o8 ~3 v5 q - ESP.restart();
% }) t! r1 h! G U - },[](){
2 i( V' U4 Y: B H9 h - HTTPUpload& upload = server.upload();" _1 F8 ~% R. r9 g
- if(upload.status == UPLOAD_FILE_START){0 O1 }/ Z ?( Q, l4 @' z
- Serial.setDebugOutput(true);/ L' d1 I7 o7 J6 F
- Serial.printf("Update: %s\n", upload.filename.c_str());2 a/ N: N+ L3 v# o! [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ n6 y- P+ v i* S
- if(!Update.begin(maxSketchSpace)){
3 w# H! S, {( M2 {" S - Update.printError(Serial);5 z! k F* j0 i9 S5 D4 f
- }
X# e2 D4 [" C - } else if(upload.status == UPLOAD_FILE_WRITE){ [4 ]" S2 z2 ?+ W; V8 k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 d& j, m( H) O6 s8 @
- Update.printError(Serial);7 F2 @9 _' }- G5 ^- z8 @
- }
* ~9 w' O+ H2 G* @ - } else if(upload.status == UPLOAD_FILE_END){" H# Q. E/ y; E4 [
- if(Update.end(true)){& r' Q* A' q& {/ @4 S
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, e6 E, d! J& W6 j, C4 c - } else {+ g) @, `$ B& P6 {
- Update.printError(Serial);
* z9 B/ M+ F& X! b/ w1 x - }
& m9 n& t" [6 I0 l; b1 B# E/ }+ r. o) e - Serial.setDebugOutput(false);) F+ P8 d" y' x
- }
+ ~5 W) `5 k+ x/ [9 Z! y - yield();
$ i5 u% p9 p* r. R3 s7 Z/ ~. F4 N - });; [ ?% T2 N. A8 \
- 2 j" o% E4 i/ R2 A; S( V) [
- digitalWrite(2,0);1 e+ f' j/ G' c8 i
- mainAction();
0 [6 H5 e# p' Y c' e0 h - if (digitalRead(0)){
6 e2 U! C) I8 e; }( \: B! p - ESP.deepSleep(0);5 B' G6 G* }0 o
- } else {. ^! ^) d8 A% Q% F* ^
- server.begin();
# e7 O$ ]! R0 f: r( Q - }. X, ]8 a% E$ \2 w# U
- }1 Y& }) y5 x; _3 ]' }. Q
- void loop() {5 U1 l/ v' w3 _% L% X+ i* S6 o" w! S) o
- server.handleClient();
1 C! `# ]9 _3 h0 K6 l7 d+ W - delay(1);
; t( U9 i$ k9 o" e. T# I- X$ T - }
0 u$ x1 K& v: {$ D- E1 H - String doGet(String url){7 D9 ?) a5 R2 R6 ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {. p, K0 g% L5 |, o" E
- HTTPClient http;* k& }, B1 \ j7 V1 M4 \) B6 D
- Serial.println("[HTTP] begin...");
: @4 w) o0 X* d* N% W - if (url.startsWith("https")) {+ K# d5 R7 Q/ G7 W* @# x3 ]/ K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); z0 W& A# v! H- L8 i) T3 p
- } else {
3 v! f$ z t' m3 u! o - http.begin(url);- J! X9 r# }: c
- }7 y i+ Q6 ?1 Y, Z1 {$ r2 J
- Serial.println("[HTTP] GET...");3 i& C7 m* b4 y$ ]) m, u
- int httpCode = http.GET();
- \* m$ c5 X3 l- Y( f - if (httpCode > 0) {
# U# o9 b+ e3 y% R3 i - Serial.printf("[HTTP] code: %d\n", httpCode);
3 A+ D& m- U- a& u$ a$ { - if (httpCode == HTTP_CODE_OK) {* l# K0 h2 {- ^- _) I, Q8 \% B
- String payload = http.getString();+ ?1 ]$ g. R: t1 v' n
- Serial.println(payload);
4 E4 i+ k9 h6 w% ] - Serial.print("\r\n");
) w- j+ p" y( E+ c: I - return payload;# r5 v% Y4 F* C
- }* l2 [9 q3 s8 s" X- a
- } else {
+ m4 T8 U( k6 ]. ?2 M: ]" ] - Serial.printf("[HTTP] GET... failed, error: %s\n",5 I2 k6 W9 K5 C
- http.errorToString(httpCode).c_str());+ F" G& w9 s+ b# S- o( }4 ^# M, Z, M/ G
- }
3 J9 U4 k$ S- k0 u) s! p4 N8 i - http.end();* O ^+ x/ R; `; }. {/ f0 T
- return "";
3 e" N: r; y$ n. i - }- A% f" T# F% N3 h7 X% f X
- }
' N0 \9 ^+ F# f' _4 [ - void mainAction() {3 C# \* K/ g5 J, u% h3 M% x3 F
- // 发送请求( K4 `. ` r$ J/ @
- doGet("http://google.cn");
' v( X( w- L2 j- P" F1 X: ]2 g - }
. l5 y; h% v& o. d4 N: J& U
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