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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)
4 h/ |, ]) u$ J9 R5 k- #include <ESP8266HTTPClient.h>7 K1 \- z j0 ^0 l
- #include <ESP8266WiFi.h>
/ L* j- `+ t3 m - #include <ESP8266WiFiMulti.h>, s" R$ H( f# V8 v! p" } t
- #include <ESP8266WebServer.h>
o) W- I# @: f3 W" _4 Q - #include <arduino.h>4 i- c( ?+ C, A# }; r; i; v! }) Q
- ESP8266WiFiMulti WiFiMulti;$ l6 \# q% c5 ?- X
- ESP8266WebServer server(80);' l' A, z' ^5 f; W8 w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 C# v* @7 ^ I, @ - ADC_MODE(ADC_VCC);7 V/ H7 {& R" Z9 Z
- void setup() {: y3 L5 e- N3 t" q) M
- Serial.begin(115200);# R( K( h2 J! U# m& k5 h1 P8 `
- Serial.print("\r\n\n");: w9 n% j5 E. B& {% b
- pinMode(2,OUTPUT);- B6 }1 \0 E5 z
- // WIFI
4 k: k, Q$ k: S! S) Z9 } - WiFi.mode(WIFI_STA);
S& ~. }; V4 r6 i* _ - WiFi.hostname("Sparkle");1 c( e6 y! o6 a5 S1 `
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 x- U+ v0 f- J8 a - int tryNum = 15;
( R5 j9 q4 Z4 ~+ v6 e( w - Serial.print("Connect WiFi");0 T, c! X9 [' D3 H* G( Q8 {; ^
- while (WiFiMulti.run() != WL_CONNECTED) {& p+ `1 _8 C- z5 ^/ P
- digitalWrite(2,0);( n& v6 b2 \: k6 @( r8 B9 {. G7 K/ n
- delay(200);( O: d7 p, B# D" B. G0 _6 ]2 [
- digitalWrite(2,1);* K2 v# w; X6 o" z, H( V3 j9 g
- delay(300);
$ J$ W5 w) A6 n" C3 q: b6 x - Serial.print(".");
/ l3 U9 ]% v0 P0 n. {8 T9 a - tryNum--;" X+ P. c# |4 N0 ^& w) y; K
- if (tryNum == 0) { V7 g+ ~! H3 x- p2 E2 T% `, ]
- // 1min* h* d L& X; M9 ] t, j
- // ESP.deepSleep(60e6);
0 J6 z8 o6 l4 H& e7 x/ u - ESP.deepSleep(0);
# w& I% r) R6 [5 X: _: A1 P6 M - }8 b4 b6 ^5 u7 E8 }6 G
- }/ ^. _' s1 T5 x4 _' \& D; a7 c$ r
- Serial.print("\r\n");
! ~6 n% h9 n) V- @) H - digitalWrite(2,1);
) ~1 s& b% x% m R$ }' k# h8 ~5 V3 v - Serial.print("IP address : ");
. W' W1 |4 E+ h' y - Serial.println(WiFi.localIP());( R; n! V5 c- @; [8 i4 r# K
- server.on("/", HTTP_GET, [](){. [4 Z/ j4 K2 [4 a2 \ s# h
- server.sendHeader("Connection", "close");
) L6 I% ~" \ [# L7 ` - server.send(200, "text/html", serverIndex);3 V- e) j. u- J% s* q5 z* U
- });
: }& a* b2 R% B: t9 o4 \ - server.on("/update", HTTP_POST, [](){
, Y5 Y- U" x9 S( [0 ^" F - server.sendHeader("Connection", "close");
* Z! a O/ e! o/ p8 V) s - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 u0 Q! |" H" F: v' c$ F. i - ESP.restart();
# N2 R4 g* K$ O. Z - },[](){
5 p/ O' W! W6 V, {5 s$ M - HTTPUpload& upload = server.upload();# @2 w% j$ i2 b) W7 v
- if(upload.status == UPLOAD_FILE_START){8 C8 d. X# n% f& P: A6 p: d
- Serial.setDebugOutput(true);3 O' Y4 N( j) Z. m' J
- Serial.printf("Update: %s\n", upload.filename.c_str());
) K3 h5 L, L9 j2 D+ c3 t8 F8 N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% e+ v5 c4 k4 f* v) w - if(!Update.begin(maxSketchSpace)){
) p2 ^) T( R: c3 C+ e - Update.printError(Serial);+ A; E* g: F+ ]& l) d& e1 S
- }
* t# [6 b6 |( o. T/ | - } else if(upload.status == UPLOAD_FILE_WRITE){+ J- n+ t- G4 @& |7 z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; C$ l# U: V& } @% c3 W
- Update.printError(Serial);" [( Q) \5 m. C# x; _
- }
1 N5 `: v2 {) T7 |; S9 u" Q - } else if(upload.status == UPLOAD_FILE_END){" X) B7 B e2 E6 H1 ?) R8 l
- if(Update.end(true)){
S5 R- z# |$ f# w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 x8 }' Q# H+ b( i: A( w( C/ | - } else {
x' M4 K0 F* j" D9 l: K - Update.printError(Serial);" C7 K( a; _; p6 ~8 R
- }
% [8 j3 @5 ]2 s7 k% D- T& ~2 B* W& L, ` - Serial.setDebugOutput(false);
" ~: R! T, w- w& T/ } - }* |6 a! U) U/ q9 `
- yield();
/ @% ~* A9 @! f8 u/ x - });
' {: z& k. I, F4 ~: x! D -
7 }$ k8 x; _# Y; K - digitalWrite(2,0);
( o: E* B. Y* L" L) w# Z% p5 ] - mainAction();4 o0 l" |" {) C9 w1 h+ u
- if (digitalRead(0)){& p+ m# [+ e2 J$ q8 ^
- ESP.deepSleep(0);% C# y) c! O, w
- } else {7 d( d# j4 M! S# e2 ~, D0 Y
- server.begin();
% m$ p) W( m6 f% }) J, w3 K) v9 Q - }
+ r, R; }4 I. K' q; u, _% _4 d8 M - }, V! E- |' O5 _
- void loop() {
3 A# ~3 c4 | \* f - server.handleClient();, G( b9 D- u1 }
- delay(1);" Q- n( ~- u/ F/ q) r3 ?4 |; V
- }
+ ]8 n7 i% Y6 Y* |' c, Y - String doGet(String url){% E% o" n- v0 I, s9 x. y. K) b
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 T" w. _) \) s9 q2 {8 Z: s% X+ k
- HTTPClient http;
) w5 l3 b( T+ w# ` - Serial.println("[HTTP] begin...");$ A- c$ b. g* `- J3 N. y3 i
- if (url.startsWith("https")) {
, m/ G9 B( z; _2 a4 t+ _3 k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 R; L- p; R$ \3 W, I - } else {( p7 c8 G1 P* _; ^& V5 |, D: m
- http.begin(url);0 D. Q# V" Z$ G% Q4 w9 v
- }
( D6 [5 T6 w8 g; C/ s: @0 w - Serial.println("[HTTP] GET..."); O; }: u/ N8 m- B- p
- int httpCode = http.GET();) u& _7 u }( Z3 O/ P `
- if (httpCode > 0) {
- D' J9 f# `" k# K) O; | - Serial.printf("[HTTP] code: %d\n", httpCode);
. H- Z& [ G/ R3 t: N/ D- ]4 u - if (httpCode == HTTP_CODE_OK) {9 x% R( r+ W" _) B
- String payload = http.getString();
6 u9 e2 B$ U7 v4 N8 B& b% E! Y7 G - Serial.println(payload);8 z5 R1 C! C5 D3 d
- Serial.print("\r\n");
- ]5 N% z$ q" R) O2 c* @1 p% h - return payload;
0 ^9 Q8 V ^& n3 F) X: z5 S$ e - }& {/ Z) Q3 G( @: T# j
- } else {3 W2 x. N8 @& d8 t' A6 O
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" r+ m1 i9 Q! U, l' x - http.errorToString(httpCode).c_str());7 {6 [6 _3 C' i8 i/ K5 A
- }
( N; q& m6 E i! Y" _$ E: e- v; R - http.end();
7 e/ k* n1 b2 w- @0 K% m - return "";
& w8 k8 ?% I# F; L - }$ x6 F v, ~1 ^2 H V. b
- }) s6 E2 u& b& e$ f
- void mainAction() {) g$ r% q8 N1 z8 Z: T# }( q. @8 s
- // 发送请求
* n. i' H$ f8 W5 a- C( `0 c$ n - doGet("http://google.cn");4 y4 i3 p5 V6 W$ t9 G* ^: [
- }$ a$ F# w9 e: B3 c o9 `- i" n
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