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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; l8 N5 F% R& a- V- #include <ESP8266HTTPClient.h>$ K& v6 J3 |/ i: h1 _
- #include <ESP8266WiFi.h>
_; w' b9 S1 O1 z* n1 Z - #include <ESP8266WiFiMulti.h>
6 `2 f' N3 Z0 }! [ - #include <ESP8266WebServer.h>) Y( p Q. Z7 ]6 e6 y6 @
- #include <arduino.h>
, I5 U. w; p4 t- c - ESP8266WiFiMulti WiFiMulti;6 c( v9 ?9 t W4 V3 D, J
- ESP8266WebServer server(80);! v# n2 l" E" A8 k
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 X! X1 T- p D
- ADC_MODE(ADC_VCC);
0 q# l/ Q' z+ b% r3 J* }& U - void setup() {
; i; G7 k# Q8 o - Serial.begin(115200);: o2 F! I* k, `+ V9 K
- Serial.print("\r\n\n");
$ r* s/ A! ]8 i - pinMode(2,OUTPUT);, C) P% r* ?5 b, I0 k& @4 q5 e
- // WIFI2 i7 t8 O2 @9 m* `
- WiFi.mode(WIFI_STA);4 r( `% a9 V' ]/ V
- WiFi.hostname("Sparkle");
5 ^1 v5 M% X5 g2 B0 V( k& O - WiFiMulti.addAP("wifi ssid", "wifi password");$ y; J) L3 X# E# k+ @% Q4 Y
- int tryNum = 15;3 U y6 m" ` n: f( L
- Serial.print("Connect WiFi");! i e1 Y# n0 k
- while (WiFiMulti.run() != WL_CONNECTED) {
: ~ v% V8 I+ s% w& M' P - digitalWrite(2,0);9 h% T" w D D8 }& E, M
- delay(200);, r5 q& R5 Z6 K4 N: a0 y
- digitalWrite(2,1);
) ^$ ]8 F5 Z8 } - delay(300);, {! b5 w" y$ i) A/ p
- Serial.print(".");
: p- ]/ z: h; D0 _5 D \! c - tryNum--;
8 X1 o6 K1 c% G- C# p0 } - if (tryNum == 0) {- L7 W; x ~! C/ Z* j
- // 1min
Y# j) g$ A0 J8 ^ - // ESP.deepSleep(60e6);
3 C, m, G+ `. ^7 l7 Q# }1 F/ G, }" F - ESP.deepSleep(0);
: X; t+ n G* d: R! X8 D - }8 C8 o+ x2 B3 |. |/ A9 \$ k& {
- }
' c4 y; l0 G1 G+ |/ y9 h2 ` - Serial.print("\r\n");# b6 y& c$ w3 D9 {! a3 K t# u( Q
- digitalWrite(2,1);
! x) Z1 t6 V' f4 j - Serial.print("IP address : ");, ~& _9 G' a8 D. W
- Serial.println(WiFi.localIP());* V: O N; c7 }* X! v
- server.on("/", HTTP_GET, [](){8 |+ G) L1 V! y0 ~5 t" \% M! @) q
- server.sendHeader("Connection", "close");2 Z1 l! {5 R) u, R
- server.send(200, "text/html", serverIndex);
, q6 i' I D: L - });
# C* `. o; G# W6 R* @ - server.on("/update", HTTP_POST, [](){
. b4 c; S2 v! p' A4 A: g8 x# g - server.sendHeader("Connection", "close");! l* x9 `; F I! `! Q% J; l! y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# @9 \- }3 P' `3 t - ESP.restart();
" s# N5 x- {9 @; R - },[](){
+ X3 i) }6 }& \1 G4 S( L( a3 o" X) ? - HTTPUpload& upload = server.upload();# k' ]( E5 J& S: i
- if(upload.status == UPLOAD_FILE_START){
- I |3 H" F+ S O6 I - Serial.setDebugOutput(true);6 }* M7 t. o, ?: W- }' Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
: k7 f+ [& s: k l/ b% I - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" q: D0 N* G! u4 G+ i7 H4 q( \/ V - if(!Update.begin(maxSketchSpace)){
3 L& e9 {" R o" q9 i - Update.printError(Serial);/ ]- H8 I+ J& m- W3 X
- }
3 ~6 t+ n, t7 ]3 X' D+ s# D - } else if(upload.status == UPLOAD_FILE_WRITE){9 P9 u, K' O9 ~' m Z8 {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& k: R/ |" E6 q, y; E - Update.printError(Serial);
8 g: W3 v# f; K8 ^ - }
" A" j. r* e" H. v0 c - } else if(upload.status == UPLOAD_FILE_END){
, Q6 l4 F' A# z# e2 `$ f" t - if(Update.end(true)){5 X( x8 h+ {" \2 p: a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! W( J) m. o: j
- } else {& @0 S. d- ^* N# e
- Update.printError(Serial);$ |1 g) o/ p' R: ^) E7 U" l& p
- }
' E7 `3 M' f' i6 a - Serial.setDebugOutput(false);; ]' N' F4 `5 E' _) ~6 f
- }; r* [3 e6 q9 L
- yield();
2 Z* s! C$ x* I8 J# M - });7 H$ t5 g+ E" y# R6 H4 t- }' n' s. q
- " C; d# Z# \+ o; y; ]7 V# `
- digitalWrite(2,0);' A+ u/ L1 w" q0 J9 @2 W
- mainAction();
, i7 k1 M( j3 D+ o6 Q% ` - if (digitalRead(0)){5 g" u a# W" P" e1 O0 C( r
- ESP.deepSleep(0);9 p$ v; ]" n/ t1 j7 t& T
- } else {& P. X1 i2 ?1 x9 o# S& H
- server.begin();
1 K4 l8 L% V) ~4 ]7 @$ ~ - }
" o m5 j; z! V% L' ~0 ? - }
; e) g8 K3 _/ R% m7 I- m' Z# T - void loop() {
* D4 `3 `+ H8 t - server.handleClient();& _4 H7 w/ n' M* M" Z, d8 l
- delay(1);
* S% e) C6 b# ^! P# v6 P2 ] - }5 }3 {) e& D! i7 U. |) Y
- String doGet(String url){
7 G7 W4 V& _+ N3 k; V+ | - if ((WiFiMulti.run() == WL_CONNECTED)) {# J7 Z' b6 s& C' S/ k V+ k
- HTTPClient http;& c' Y7 S; l7 e
- Serial.println("[HTTP] begin...");; u5 w" n" @8 ~7 k" L' x2 q$ J
- if (url.startsWith("https")) {0 Q' q, l$ I3 C; i) K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ Z# A/ l5 a0 b# y
- } else {! }" {/ `. |8 ]4 y/ m
- http.begin(url); k& o$ X) S( Q3 _ L
- }
4 ~/ t* ~9 n8 h - Serial.println("[HTTP] GET...");4 p8 b, d" O' s; N
- int httpCode = http.GET(); \1 V( G4 J2 j
- if (httpCode > 0) {) z3 o0 e% Z5 X8 Z, s
- Serial.printf("[HTTP] code: %d\n", httpCode);0 B/ W) o+ A: @; @1 b1 }
- if (httpCode == HTTP_CODE_OK) {9 a0 E* K: s% t* a2 \
- String payload = http.getString();) s) T \( @& ~# @' ]! g$ v
- Serial.println(payload);
% y9 m. R! l& h, _' _/ y& A8 B2 H- E - Serial.print("\r\n");& ^) ^4 j8 t3 q' C3 Y! f6 N
- return payload;
* J5 A$ j6 P: s8 v: c - }/ w1 `8 @( Q; t1 } \8 z0 X
- } else {
# V; _+ t3 E. ^$ d4 U6 d- J. s0 o+ F - Serial.printf("[HTTP] GET... failed, error: %s\n",! c# Z# J! f/ M7 l0 Y' K! H/ Q* |
- http.errorToString(httpCode).c_str());
- y _3 l* Z }5 I% j& b" E - }% S$ Q8 T) k# q; |/ }7 p+ K. r
- http.end();/ o7 q. K9 J/ Q0 t. | w2 m7 N
- return "";
1 p- Y) A$ J( ?* i5 @7 ^ - }- S+ u( P K; Z, v& a
- }
6 F5 {- L7 j; ^) a; j0 U5 Z - void mainAction() {
! m+ f3 e4 g" G8 a" j" |0 [ - // 发送请求
9 K+ \. k3 t+ f$ G# t* i - doGet("http://google.cn");2 o* I' m' q$ z* C/ I2 X
- }4 J% Q# U; m- t8 l
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