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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)
% X1 F, H! Y7 | [7 n- a J7 @- #include <ESP8266HTTPClient.h>
, `5 a: `( G; ~5 J! H - #include <ESP8266WiFi.h>
5 X: E3 c' ?+ J* f3 } - #include <ESP8266WiFiMulti.h>$ a3 {, U e; L) Z0 h) \9 M
- #include <ESP8266WebServer.h>1 g0 {% i* {' C1 y" s6 B' ^9 [1 W2 d
- #include <arduino.h>
1 p% K' U& ~% A' T3 y - ESP8266WiFiMulti WiFiMulti;
0 ~4 b6 U. }; s - ESP8266WebServer server(80);" N% G$ E" C+ ?8 U0 [# p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 a* }5 c2 I. B; O; v& s: L3 b - ADC_MODE(ADC_VCC);
6 V n# ^) C/ H! {5 N - void setup() {# s0 Z9 [& ]9 d
- Serial.begin(115200);
9 Y6 _' L" P U3 V3 C2 | - Serial.print("\r\n\n");, \+ P5 n3 L5 i9 q, i
- pinMode(2,OUTPUT);' K- Z9 ^ I, i
- // WIFI4 ?; m6 R) ]2 p& y' c6 ~3 Q6 K
- WiFi.mode(WIFI_STA);, J9 f7 P* K9 q; U0 K4 l/ K
- WiFi.hostname("Sparkle");! y* j) O+ r0 P4 V0 x3 R
- WiFiMulti.addAP("wifi ssid", "wifi password");' D S0 [* X( [. M! K/ U s: ]
- int tryNum = 15;. c0 r- W3 K) V: w6 }8 x) y% v
- Serial.print("Connect WiFi");
" H9 q3 N* C9 t6 H - while (WiFiMulti.run() != WL_CONNECTED) {' K! Q: J* m) ?0 P
- digitalWrite(2,0);
/ K' |, _9 a ~) ? - delay(200);- U4 F1 i. G s& v# V3 Q# z/ w
- digitalWrite(2,1);
z C7 Q% J8 e1 n) N+ F - delay(300);
0 J; R& ^" a' N: @ - Serial.print(".");
) K$ C" F& i4 x! N o! X) ~ - tryNum--;' n( X8 _2 \8 ]; |. J
- if (tryNum == 0) {1 a( U& X/ g4 B2 w7 O
- // 1min
3 m' H# y. s) T4 Q" L) W - // ESP.deepSleep(60e6);
4 ]- M L( N$ a" C# x1 _* m* e - ESP.deepSleep(0);
6 J& ]6 X3 e# _. m# }* | - }
% C# ^( V- `: d - }
1 ~& A! @; `7 Z0 k6 y - Serial.print("\r\n");
0 {8 c8 v* T* D - digitalWrite(2,1);# a$ B( ~- x1 t# ^- H* ?
- Serial.print("IP address : ");0 _4 Q! R/ e5 b3 @% {" _
- Serial.println(WiFi.localIP());# a" j4 \" J# M8 e
- server.on("/", HTTP_GET, [](){: J9 k; x9 F1 U- G' @
- server.sendHeader("Connection", "close");
) Z0 N) ^5 _5 ]$ d - server.send(200, "text/html", serverIndex);
) r" i# ?; r' X" X - });
& X# v- ?! `* L. D - server.on("/update", HTTP_POST, [](){
" F7 D: \0 c, R/ { R0 P( K w - server.sendHeader("Connection", "close");; h! s& z- h6 I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 @0 ?& Y& p4 s5 K
- ESP.restart();
( ]0 [/ @! S( g5 l, U1 W+ | - },[](){6 m% g; }$ T- M# o3 }+ M/ I
- HTTPUpload& upload = server.upload();
5 G* X; |( S: r3 [9 Q. I - if(upload.status == UPLOAD_FILE_START){+ R# D; w! M4 a
- Serial.setDebugOutput(true);4 Y' `2 O& E5 F, E6 w' x
- Serial.printf("Update: %s\n", upload.filename.c_str());
; o( h3 `+ s8 f5 m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 E3 e4 _( Q8 Q! |% U
- if(!Update.begin(maxSketchSpace)){
9 M% r. q5 r7 J; J - Update.printError(Serial);9 {& }% J& E, U
- }/ j8 I$ X' A! Z: x! I4 g% J
- } else if(upload.status == UPLOAD_FILE_WRITE){1 M# m4 J4 y2 @4 j9 G' E# g
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 E w3 ~! R+ v, H$ O; c7 Z - Update.printError(Serial);
4 s/ T! {7 P2 q6 g+ _3 O - }9 M1 {& w0 H8 I% p8 W. i9 N! \( c
- } else if(upload.status == UPLOAD_FILE_END){
8 W y K: g. G/ @5 v F3 z - if(Update.end(true)){, G' A8 ^2 h4 J
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 p/ V% R+ D! c$ m5 p: [
- } else {# I3 Q7 [; b, H
- Update.printError(Serial);5 ~% N" g. q" R7 W( {( x9 j
- }
2 s# `8 I) ~# C6 u c C9 M - Serial.setDebugOutput(false);* P& i$ G6 P: d d% Y9 B3 }
- }
- y; n9 C+ I$ j1 h2 { - yield();
8 |* f( G; C7 i9 M( o" N/ ` - });/ D8 f! w& N, o" P# K/ K
-
1 H5 T8 X5 i& Z* d+ d, H - digitalWrite(2,0);- [# X8 i% k" `8 O. D! n% K
- mainAction();
2 N: p7 k* @# L - if (digitalRead(0)){
& [1 L; n9 U% }3 p4 L/ w - ESP.deepSleep(0);
7 Y7 `4 X3 L( [/ p - } else {
# p# V2 m$ A" b& t+ f! ` - server.begin();
; b" h3 L9 j( ^+ t - }
+ D( [6 P- B8 o) _ - }4 y {$ l p _ @
- void loop() {6 u# m$ ]+ u, N+ B+ e' r
- server.handleClient();
% I7 r- a, B* [4 r" B* O! ~$ @ - delay(1);
: A! Z7 L) P) s, s# q - }! g7 x$ k/ D) }6 v0 O$ U+ J; L7 ?% D
- String doGet(String url){
2 B. ~0 z) P5 y. P; l; P6 S$ C - if ((WiFiMulti.run() == WL_CONNECTED)) {% l; q# Q2 x* @
- HTTPClient http;3 P2 H# s1 A: i& ?
- Serial.println("[HTTP] begin...");3 g, P% Z- k2 V' J
- if (url.startsWith("https")) {
. @& x; d2 L0 j8 @ - 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; G8 x% c, y. @" ^! I. _/ A8 I - } else {
* h! n! g7 r3 a. p) W8 c' H% r - http.begin(url);
7 q. T1 O# Z' O6 U: N - }
/ A4 I$ K# e) K! y' W - Serial.println("[HTTP] GET...");1 Q N4 q' u0 h/ p6 S; D
- int httpCode = http.GET();" }, S4 H( u4 Y& A0 m/ x. N$ h
- if (httpCode > 0) {
1 ^ x3 M1 \" Q* \% r$ O - Serial.printf("[HTTP] code: %d\n", httpCode);+ w# F* ?' J0 a5 I& a( _
- if (httpCode == HTTP_CODE_OK) {
* W# u' P! D9 R# t - String payload = http.getString();8 p v: w8 T# d
- Serial.println(payload);8 m/ D) f/ ~0 e3 c+ i3 v
- Serial.print("\r\n");
# O6 d* E/ F# J0 ]9 I8 w @2 M, e - return payload;8 ^- Q5 h9 v, N6 f0 b9 h0 G) m
- }
, _, O( D6 v) Q! q8 @+ g, @ - } else {/ D( G2 v' F/ [- E/ f. i/ }6 w
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: q. M# K7 |5 E& R$ e - http.errorToString(httpCode).c_str());
5 I V8 d1 S" M1 ] - }/ ~& i/ ^+ `8 |0 ]& [7 \
- http.end();
8 e- `) m; @' r) l2 y8 g - return "";
7 Q; M0 X n) o8 N# r8 A0 ^) \ - }
4 ^" o/ z+ r, F2 w. O+ A - }
( k4 Z4 O% [+ N - void mainAction() {9 M0 W7 z0 b9 A* @; l: i4 {- d* c5 `% [
- // 发送请求
/ ~- B! [. ?3 [6 D$ n6 o; V - doGet("http://google.cn");
; _4 w, C- e' B) B: h7 l: J( g; w+ o: h - }
9 m; ^* a6 a0 r9 _' g& S1 x/ i
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