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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 j1 l. ^8 d7 x% u- #include <ESP8266HTTPClient.h>' P; n& R- E/ t' J' p+ N' @
- #include <ESP8266WiFi.h># N4 ^) J9 f& `. V8 V
- #include <ESP8266WiFiMulti.h>9 C: o1 J& R l$ s8 @
- #include <ESP8266WebServer.h>; @3 b* t- V, ~ R; w
- #include <arduino.h>3 X5 p( P6 M: Q3 m" `
- ESP8266WiFiMulti WiFiMulti;
/ y. v; z* }1 ~+ X: x - ESP8266WebServer server(80);8 O# z5 p+ U& l4 }; G) n: O2 o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 _+ y8 b, D# A: W& O
- ADC_MODE(ADC_VCC);
) A: s e, E K7 [ - void setup() {, K- M+ F/ g0 ~* P& |
- Serial.begin(115200);' ?5 v7 W Y9 _1 k ~' n' Z' u
- Serial.print("\r\n\n");; Y: L( o9 D; L4 a+ ?1 b
- pinMode(2,OUTPUT);- T0 G( F7 {" X8 U
- // WIFI
7 p7 U+ G$ s) `8 ]1 h+ r D - WiFi.mode(WIFI_STA);. U0 ^5 g- `" R6 d; |! I
- WiFi.hostname("Sparkle");# u" T* N7 m: j, y+ n p
- WiFiMulti.addAP("wifi ssid", "wifi password");( |: A( M* R g+ p. |6 d) b4 t
- int tryNum = 15;1 }% H% V4 P5 D" t( q9 v6 k4 ^+ @# d- }
- Serial.print("Connect WiFi");
7 M) r) ?& @. ?+ ^5 N) q/ C - while (WiFiMulti.run() != WL_CONNECTED) {
; b$ N& ~+ Z+ X& g9 F; U8 _" i - digitalWrite(2,0);
. w$ [! M; m8 U, f, a8 i - delay(200);* \9 n% r7 X- `6 e& T7 R. o
- digitalWrite(2,1);
8 n0 K: ~$ N9 d, C5 U) y9 j - delay(300);% d" D8 c! c1 s* U( x
- Serial.print(".");
! N9 d' g1 h" y; a1 k& l - tryNum--;" J% g# m" _0 V% m5 O# w8 m
- if (tryNum == 0) {/ Q$ c3 h2 x! l( N: g! }! c+ d
- // 1min
3 v9 S, J4 q- q n' R i: Q ]0 \: Z6 G - // ESP.deepSleep(60e6);/ q- h4 z3 | J1 E8 o; R5 X
- ESP.deepSleep(0);
! U' v, x& v8 _ I: z6 a: f - }
: o" Z/ a+ ?: R( l - }, z0 V- K, ^* y9 \" C3 `
- Serial.print("\r\n");
7 e" z) S# [; y- @4 r8 L/ ~ - digitalWrite(2,1);6 {4 P+ q4 e ]4 Q' L6 m4 K0 O. S
- Serial.print("IP address : ");
9 ]. W, X/ E" Q8 z& G - Serial.println(WiFi.localIP());3 G9 @ m* H6 s: F' w, ?! v) N
- server.on("/", HTTP_GET, [](){
2 f1 _- \+ f4 O6 e' g" A& M" C5 S' ` - server.sendHeader("Connection", "close");
O& _& E4 C. G+ d - server.send(200, "text/html", serverIndex);4 m, H8 D$ L7 L% V
- });9 X' W# [7 l, z
- server.on("/update", HTTP_POST, [](){
- @/ c8 z' A3 o' k+ z4 s& d - server.sendHeader("Connection", "close");
; T& O* {7 }2 N8 l" C0 q$ n. g' h - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 a9 s1 \) f2 ]" t6 G& F
- ESP.restart();
0 O/ t* \& q+ Y$ ?) S - },[](){% X1 I$ M7 R- r. [3 A# H, T# [
- HTTPUpload& upload = server.upload();3 y% z4 J; i5 E8 }- m6 W
- if(upload.status == UPLOAD_FILE_START){
0 {! B* B. e7 u' }: P - Serial.setDebugOutput(true);
3 q6 b( R T! U3 Y7 R) U - Serial.printf("Update: %s\n", upload.filename.c_str());
0 O& l" v5 K# s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 |. M* N. u+ y& q - if(!Update.begin(maxSketchSpace)){
2 h% |- Y. u7 ?# o( h* Q - Update.printError(Serial);
8 E% c1 b) A# M4 x - }+ G0 U+ D1 I; A" ]: t2 ^$ G
- } else if(upload.status == UPLOAD_FILE_WRITE){
* A$ m' _5 A% | c, K; M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 x) M4 |. a' f1 V4 O5 C1 s
- Update.printError(Serial);
5 h4 y6 c, l, E" b2 b - }( w+ \: [! K/ J3 y( q/ R0 h
- } else if(upload.status == UPLOAD_FILE_END){. @( ]5 ^' C2 ]
- if(Update.end(true)){$ n* v# F) O5 z' \% J
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& A* q( V6 y A# x+ j6 K/ g/ |. O - } else {; [$ `$ W7 E- q9 v
- Update.printError(Serial);
! Z" V* \4 b! b0 m+ v( S+ ]! U - }- A* y. G) Y4 P. e+ N
- Serial.setDebugOutput(false);
5 ^0 y+ T, z" Y7 e - }4 z: z _- H, K: |4 q5 B3 {. J
- yield();; D9 G* [ a$ [
- });
0 J [( E+ T: q5 o! U/ D7 S - 5 d3 r- j. G9 w1 v3 v+ x, q
- digitalWrite(2,0);! u7 D% b; c( V5 J; m- N8 b5 [
- mainAction();
5 C: t6 E/ u) j8 G. k7 b/ p4 K - if (digitalRead(0)){
0 M; N$ d2 t, t& n - ESP.deepSleep(0);9 c, H0 S! G& X; y$ k
- } else {/ U9 |( X8 K4 H& B: ?1 t
- server.begin();) v. r' X& L, P
- }
. w8 f! S) h- d9 [8 w: H- [ - }
: F7 u" x- d' H# m( t% S& t - void loop() {
: q: d4 q- x6 O - server.handleClient();
* M8 k& ~& h( v2 W; B! F" `1 V. o) b - delay(1); y6 b1 r9 x4 P) [5 V" X& g
- }
+ |( r; T6 _1 V& x8 w. Y, E' V2 S - String doGet(String url){: V9 g/ \+ u9 L) |. V4 e. m
- if ((WiFiMulti.run() == WL_CONNECTED)) {
/ q% @: K# t; z, E& ~/ ? - HTTPClient http;
! M- v" O- Q9 c, z+ @ q - Serial.println("[HTTP] begin...");
1 D% \6 _# P1 c# G# u0 O' y - if (url.startsWith("https")) {
7 a1 b6 R* j+ l" S - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( q/ ~' i* o% g# I
- } else {7 J8 e2 f0 w- y4 h/ x- p
- http.begin(url);
4 G t" k+ h( g" V* C- X3 Z- Q+ X - }
5 b$ `! a/ N$ L: J+ M( ]" L4 |' k: K - Serial.println("[HTTP] GET...");% Q7 j, A" n, {
- int httpCode = http.GET();
) _/ P' G) K1 l" ] - if (httpCode > 0) {
1 F' H: V9 n( U1 i& Q - Serial.printf("[HTTP] code: %d\n", httpCode);
& o! U/ l1 S( ^& `) G - if (httpCode == HTTP_CODE_OK) {
& [$ v) u1 X" K) s: s - String payload = http.getString();
2 \, ?/ w E8 n) S1 q4 U - Serial.println(payload);4 u# t- [/ S; g7 S1 Z6 P1 K$ w' J
- Serial.print("\r\n");$ e7 h: A) ]2 M" b
- return payload;
9 U; ~, \$ w' ^% n3 f2 T8 @ - }
7 Z% m9 J" E8 r; o" {" C - } else {! r/ _6 E, T, c& B
- Serial.printf("[HTTP] GET... failed, error: %s\n",# d/ X s% V4 f% j5 Z
- http.errorToString(httpCode).c_str());3 L3 x' A) d2 C3 q9 y2 h1 S. \! ^. @
- }
- O* U' w- N- m - http.end();
3 ]# `0 F# g7 q' m( G. x - return "";6 B$ q. j- _1 E# O
- }
. u! ^- V$ p. p4 C" n4 h0 D" [, o - }: }/ H( U2 Z/ S# m: o9 c% B- k3 V
- void mainAction() {
. c$ b0 A. {3 |. q4 z" `& f8 A6 n - // 发送请求
9 A1 R& E6 T2 E/ ] - doGet("http://google.cn");
4 G- _" h |! \- b+ f - }% i& O7 z) g. H/ `3 c' L
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