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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)
; x* r& f" W) \8 } ?- #include <ESP8266HTTPClient.h>$ G1 R2 w8 j' L2 b/ f# h/ Z3 a
- #include <ESP8266WiFi.h>5 I6 x; f; K8 V# p7 U. K
- #include <ESP8266WiFiMulti.h>" V+ }% Y& C/ x
- #include <ESP8266WebServer.h>
) U( m6 l# D+ i& D6 o* f3 w" s9 w( M5 S) w - #include <arduino.h>
# y, x+ h' s5 e# A6 U - ESP8266WiFiMulti WiFiMulti;
+ y& E! m$ J; g4 w) u6 f6 o - ESP8266WebServer server(80);5 A% C: ~$ U- S0 h1 l1 p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 t: d; T7 g5 c C0 ~% V - ADC_MODE(ADC_VCC);' S) x: H7 c/ o' l/ {( v/ @8 Q# g
- void setup() {5 a' T8 U0 V3 E1 c9 i) }" b
- Serial.begin(115200);. t& ~" B2 r9 v& O( }/ B7 ]! a* \
- Serial.print("\r\n\n");! B" z5 c, v' t
- pinMode(2,OUTPUT);
: y% }/ ]3 |% G: L& m - // WIFI7 @* |# a( A! g2 Z7 l9 Z6 S8 `
- WiFi.mode(WIFI_STA);- K( ~0 O" h4 S, o
- WiFi.hostname("Sparkle");
# m3 l8 X) T: H4 m - WiFiMulti.addAP("wifi ssid", "wifi password");1 Q" r" `% C' T+ |
- int tryNum = 15;2 H* a$ Q7 U/ y* P8 _
- Serial.print("Connect WiFi");
2 f5 S$ ^- E' {; ]# [4 \ - while (WiFiMulti.run() != WL_CONNECTED) {
1 E: K$ K" X- X, p/ r8 _ - digitalWrite(2,0);* t& }6 z2 T- Z6 h6 B1 y% z
- delay(200);& K& x. z6 u5 j. m' y6 _
- digitalWrite(2,1);
9 W$ I% Q: u# U" R, b7 M - delay(300);
; t, J/ z2 |% H+ n# M3 u! C. g9 k - Serial.print(".");
. l4 v2 C3 j: b! I - tryNum--;
: p5 n' ?6 E& c, N1 b$ J5 l) Z* e - if (tryNum == 0) {
( S2 K- j) y0 K - // 1min
6 s% C2 ~/ S! [" H8 t3 h$ c - // ESP.deepSleep(60e6);
4 [# Y4 m& u5 q9 g6 l - ESP.deepSleep(0);7 g5 V! \- O1 ^7 \- l
- }
% J0 X9 t2 l* i) L1 q* Q - }' T( [. U, `0 Y& \* ]
- Serial.print("\r\n");) u& l5 ^ F- q
- digitalWrite(2,1);
% m7 R L' [. \( X7 { - Serial.print("IP address : ");
# v; k- ~, [; ^+ Q2 ]9 ^8 i" F' G% g - Serial.println(WiFi.localIP());
, y' D+ D8 d. l1 S" O - server.on("/", HTTP_GET, [](){
6 ^. v; K6 P- C: L6 E& h - server.sendHeader("Connection", "close");
$ r" Q7 Z2 C& [9 A - server.send(200, "text/html", serverIndex);; Y o! l( O4 J' P/ s
- });% n' M3 m2 g; ~/ g6 z
- server.on("/update", HTTP_POST, [](){5 O9 z0 b+ l. u( W: K6 N7 g! Q
- server.sendHeader("Connection", "close");0 u' Z" M7 y- S; h
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* `0 V1 s4 u% { ? - ESP.restart();
$ x% J- K6 T/ G5 L - },[](){" {1 `# m' A4 b9 u0 B, X8 K! c
- HTTPUpload& upload = server.upload();$ N$ l; T1 [( f
- if(upload.status == UPLOAD_FILE_START){9 g! M! t6 i, s# B0 z: ~: w
- Serial.setDebugOutput(true);9 E; h+ Z i$ ~: u$ K! Y5 X6 ~) q' `
- Serial.printf("Update: %s\n", upload.filename.c_str());% u; v/ |0 W# x* Z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; a8 W% ~( _# x0 N( s
- if(!Update.begin(maxSketchSpace)){
9 X8 w: ?: i2 i4 I9 {7 V - Update.printError(Serial);
' P2 c! A$ t6 V& m - }
/ R6 Z# p9 J, N# N# q% u/ ]! G% t - } else if(upload.status == UPLOAD_FILE_WRITE){
" _; T# Z# U0 r7 P# l - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" e% V. K% f0 O i* r
- Update.printError(Serial);. U( {8 l( }9 T7 y9 v' J
- }
8 `! g# D) |" }- p0 V - } else if(upload.status == UPLOAD_FILE_END){
$ k; ^ F- h+ l) p; ? - if(Update.end(true)){
4 h x2 R) C& o6 ?' L6 \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 K) q: K7 D( g( Z
- } else {
3 {% |6 Z- g7 ` I) L - Update.printError(Serial);4 g1 ]+ _; X. Z
- }
' X1 G$ u5 j+ U% J% ? - Serial.setDebugOutput(false);6 c+ W; ~1 I/ M1 y) \$ d) O0 \
- }
- h+ n3 ]9 p$ I G4 o c' I& h - yield();
2 J( U5 n: ^# R5 L0 g* ~6 p: B( S - });
! _$ {, P4 \ k6 \, r" r# z$ n - ; R: O7 H! |- v# }
- digitalWrite(2,0);$ u \( Q4 ^# Y7 ?
- mainAction();: }( I) Z' c, d# }
- if (digitalRead(0)){
% f% ?* x! X% D: }1 @8 s, U - ESP.deepSleep(0);" D% b0 [& n6 w" d7 K
- } else {
9 m/ f! Y: a! D. x& J9 f - server.begin();
8 u8 s* l% T" e) v E - }
7 d [: ~4 Z4 G5 P) @ - }
?7 d9 P/ v+ L0 H) l8 ?( G) o - void loop() {$ v, Z/ m' G y ~
- server.handleClient();
, E8 Z: x0 ?5 g6 X' H$ q9 ~ D7 U - delay(1);
/ k- ?0 O7 J* `& G/ K, N6 ? - }
5 P+ E, F6 j! L. V - String doGet(String url){
4 s0 v- B4 c0 `- ]1 ?5 H) }1 n - if ((WiFiMulti.run() == WL_CONNECTED)) {5 a5 |& c* |, U' Z+ R+ m
- HTTPClient http;
/ b& {7 b# h- b8 P: L( G0 o - Serial.println("[HTTP] begin...");
( D; Z# i% Y; g7 g" {# K# K1 ` - if (url.startsWith("https")) {
/ J6 z) H, B9 g9 e C: U5 R: n* m: p - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 X# @9 K V: E- @4 k% e
- } else {' f, R S/ e; E- e; ^" n9 J
- http.begin(url);5 ^: B4 G+ G: K7 F3 S) u+ F
- }8 D5 a* s* ]) C% ~" F) Z: D8 ~
- Serial.println("[HTTP] GET...");5 F, R; `2 H1 p" b/ B# n
- int httpCode = http.GET();+ g3 M; q+ I( S/ |
- if (httpCode > 0) {
( O% W: m8 f2 r' f - Serial.printf("[HTTP] code: %d\n", httpCode);& S& j$ p6 d( J% [4 r
- if (httpCode == HTTP_CODE_OK) {7 I }) A. C4 O
- String payload = http.getString();
( p& G# { ~! {, s7 }5 f - Serial.println(payload);# `$ j1 [# X+ k c$ ^! r2 y% F+ {
- Serial.print("\r\n");& w" e' j2 L/ ]
- return payload;
, c ^0 m; `0 I" Q3 l4 _ - }
% x- X! n* i" x- i) } - } else {3 o; y& f/ L3 a: f8 W
- Serial.printf("[HTTP] GET... failed, error: %s\n",: ~$ P0 D0 Q; w9 Y! d" C) t
- http.errorToString(httpCode).c_str());/ }4 T5 @0 O, T1 N
- }
6 V& ?" M! r: i# `+ g u0 \ - http.end();/ C7 w$ P, c$ K# l' C7 i
- return "";& n ]3 A- ~6 H4 t9 p: l# r
- }
" r2 _* ?* u9 M+ _ - }
5 o# F6 \) _: E% d - void mainAction() {
% G" j' T h- _$ f4 D: M1 n2 Y - // 发送请求+ j' J. ]* A* k+ m) v' e" F: }
- doGet("http://google.cn");9 x j- H2 @& H
- }( b8 h6 ?4 w: W" W0 j: q% O
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