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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)! Y3 X: k/ f* u9 x) c
- #include <ESP8266HTTPClient.h>) E9 A6 x$ M& c9 |
- #include <ESP8266WiFi.h>7 K& U; x; H1 Z
- #include <ESP8266WiFiMulti.h>0 X3 n7 k L4 x
- #include <ESP8266WebServer.h>1 v7 F( [2 A- d
- #include <arduino.h>& ]$ u5 J' C3 K8 u9 ?
- ESP8266WiFiMulti WiFiMulti;
- f7 r0 j+ p4 ^2 _0 ~& i7 u" }- t - ESP8266WebServer server(80);
' }* s) Z& L" u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 z/ {3 [; Y. X% j# u5 b
- ADC_MODE(ADC_VCC);; k* }0 ~7 _) |7 l, I+ ]' q- O
- void setup() {
# h3 Z2 Y# s2 x; ^0 w V. R - Serial.begin(115200);
! X U/ Z0 S# j8 p. M M - Serial.print("\r\n\n");, }$ L0 N; h2 k" m! O
- pinMode(2,OUTPUT);. v' ?1 w" e/ X3 b3 l
- // WIFI- ^9 i' `+ h- i6 F, B% m
- WiFi.mode(WIFI_STA);
2 G0 U! }6 q8 F - WiFi.hostname("Sparkle");2 \8 b7 u. n& X8 g) D. w& V
- WiFiMulti.addAP("wifi ssid", "wifi password");$ h8 _: H' Z+ \+ I0 d& l' ?8 v. v: H
- int tryNum = 15;
/ @: E# ~+ ?; Y8 Z" \ - Serial.print("Connect WiFi");
0 @6 \* W7 d5 L9 x+ g - while (WiFiMulti.run() != WL_CONNECTED) {5 ^$ f0 l/ ]/ O$ W
- digitalWrite(2,0);3 t2 {4 ^/ z- f1 q1 }
- delay(200);
8 b X+ w6 S+ ?' J+ F - digitalWrite(2,1);; \& V, p5 `$ @& b+ M! e7 R
- delay(300);
9 {- @5 W0 a, R - Serial.print(".");" f' [8 T6 z: i0 n
- tryNum--;
, T, p6 u0 Y* `7 y" @4 ], S! k5 K - if (tryNum == 0) {
7 X4 w {# b0 F1 j+ F - // 1min
* @: {( k: H6 } - // ESP.deepSleep(60e6);
; j2 S; c$ n: l7 m - ESP.deepSleep(0);$ W; G R# o$ T( P; m
- }8 z |- s* t8 k6 \
- }! t& R8 ?- S) ~. x
- Serial.print("\r\n");
6 ]1 F( l: T1 Q* [ - digitalWrite(2,1);
8 ~$ x9 V" M" H0 A7 k - Serial.print("IP address : ");( f! v( `7 E2 R
- Serial.println(WiFi.localIP());1 A" g) ~8 {! ~) b6 @" n; F
- server.on("/", HTTP_GET, [](){
. Z+ h! g0 ~9 P1 M" O8 M - server.sendHeader("Connection", "close");
8 I! _2 v; \9 y4 p2 X; j - server.send(200, "text/html", serverIndex);+ p! i$ ]1 a$ a3 q4 l- Y( Z
- });
L2 N4 h3 C/ W( k - server.on("/update", HTTP_POST, [](){/ s- U/ V+ s' q( L1 n' y
- server.sendHeader("Connection", "close");
+ C7 G# r6 V& m( B! ^4 t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! K; H0 b- r. ^0 v
- ESP.restart(); v- }; \9 y5 n1 I
- },[](){8 D6 Z: o. n9 a, q, a$ ~# Q5 r% o
- HTTPUpload& upload = server.upload();
% G& b" [5 q9 q: m g$ @2 ~ - if(upload.status == UPLOAD_FILE_START){
, d! t. c' o \0 Y! x - Serial.setDebugOutput(true);
# w+ `+ ?4 C5 k+ ?; r - Serial.printf("Update: %s\n", upload.filename.c_str());
, t6 I# G) C3 w$ N. B5 m8 j - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 U6 O! d8 \7 {, U6 C
- if(!Update.begin(maxSketchSpace)){1 L' t4 ^7 e4 e+ Z/ P
- Update.printError(Serial);+ t2 `2 o, X- S' T% K
- }
+ i) j7 v% O2 V - } else if(upload.status == UPLOAD_FILE_WRITE){
7 A2 l4 k, H, I - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 X9 o( |( B9 y- K$ |: I - Update.printError(Serial);3 H# }9 h s8 Z& n
- }
9 h. L. v) r) Z& ~- `' C& z - } else if(upload.status == UPLOAD_FILE_END){5 N t! T5 q, Z5 a7 w! n7 ^
- if(Update.end(true)){7 j% w$ r5 t- @7 [2 b9 D9 o$ G
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ x6 r* h: D( ~6 g
- } else {0 h6 J, \1 {% g* I, G! @1 e3 Q/ Y/ x
- Update.printError(Serial);
4 I8 E0 c. |! h0 b. i6 }, B - }+ ?5 h% Z z5 [9 w
- Serial.setDebugOutput(false);% r7 w0 P% n3 B. p& b; f$ ]' {( e
- }5 i# ^6 `+ W9 L" T4 e
- yield();! o7 L6 ^, X( x4 H. D9 Q
- });
?* F4 P/ K3 n: E+ L -
* A1 W% P$ G2 b* W6 e6 s - digitalWrite(2,0);
8 L* {0 x2 F% G5 C! P, g- B - mainAction();, c/ [* ]* ~4 r+ ?
- if (digitalRead(0)){
+ u. @ S' t( Q5 K& f: u' \5 j - ESP.deepSleep(0);
2 d1 s6 C: h3 v. s! m - } else {
9 W3 ?1 S5 Z' C0 q: V6 _4 h0 ]1 i) V - server.begin();
- ]! T& P8 R6 C' Y - }
; ~ X) k+ w0 l7 R0 E" K - }" q2 t% [0 V0 u1 ~* I6 p
- void loop() {" @9 Q J7 ^ _/ m# [! n) K2 f- e
- server.handleClient();
8 U" i* T# K* _/ {! [7 c - delay(1);3 p. K/ l/ F( h) d" U% p1 D
- }( J1 [8 Q* K0 Z
- String doGet(String url){* m* c/ ^1 k( O. W, t+ k0 V3 s3 W
- if ((WiFiMulti.run() == WL_CONNECTED)) {
7 @; I3 t1 z6 k; i, S1 ^ - HTTPClient http;8 {5 Z! q8 o% d' s8 X
- Serial.println("[HTTP] begin...");
: n+ i: I) @* e - if (url.startsWith("https")) {7 C6 P4 g2 [* ]5 K2 K' W7 V, p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
5 F2 |4 L1 W0 D - } else {. f0 S3 h2 X% x( e' p
- http.begin(url); q+ S, b, z, o, \5 U# y( i
- }4 q- c: S9 ~5 M0 o1 y y
- Serial.println("[HTTP] GET...");' Z2 Q/ m/ k: O3 e+ `! L
- int httpCode = http.GET();7 j3 F6 f) ~, B9 y5 S; b3 ?5 Z( V1 @
- if (httpCode > 0) {( O9 s4 R: w. C( H% F
- Serial.printf("[HTTP] code: %d\n", httpCode);: S ~3 _5 n* I; Z
- if (httpCode == HTTP_CODE_OK) {
& a( F7 G& v0 \& r5 Z7 Y - String payload = http.getString();# I. k1 n* T( q+ o! E' o
- Serial.println(payload);& p1 W! N6 h% F7 Q2 M" I
- Serial.print("\r\n");
z2 C* i- }+ V1 i+ ^" N! n - return payload;6 b/ y* S; L3 s2 @$ y
- }
, e+ }4 O/ N- Z' t1 d0 ` - } else {
, z# C, r( U& z& n. P - Serial.printf("[HTTP] GET... failed, error: %s\n",% m( g$ @. x* }8 S* R" _
- http.errorToString(httpCode).c_str());
- m1 c# ~* M' z1 ~" R - }
- g! f- ?/ r2 g0 K - http.end();7 d9 t: ]% Y4 M
- return "";
- h# O$ A$ h" ~" y% F - }( o: R. C$ `. ~6 N3 r/ Z$ Z
- }* F" \9 r% ^/ ^9 A+ Y! D: `
- void mainAction() { N: \5 s% a' _. c2 r! Y G
- // 发送请求
s$ \# V4 C7 B - doGet("http://google.cn");
% A" Q0 H8 e; ? - }
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