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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)
" z+ X0 _4 v6 {9 t; y6 B O- #include <ESP8266HTTPClient.h>
4 w: T6 z: D9 G: p( C - #include <ESP8266WiFi.h>
- i$ a# g! c9 E) R) J5 W - #include <ESP8266WiFiMulti.h>0 t: B8 j4 _8 m5 s' m
- #include <ESP8266WebServer.h>
* _7 i- ?! S! D% }/ N, [ - #include <arduino.h>+ h* [5 [' q1 W- w( @& t2 D8 O
- ESP8266WiFiMulti WiFiMulti;
0 V, q" \8 N- Y( `# q - ESP8266WebServer server(80);" g6 X* ?! U1 @
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 Z; j; K1 |% ?8 ?% ^
- ADC_MODE(ADC_VCC);: o* j% {' ^7 p2 q B
- void setup() {8 H T4 x% g/ i. ]3 E" S% G
- Serial.begin(115200);( N* d# e; |# o f& r
- Serial.print("\r\n\n");
8 }5 E: o, |0 e( L3 O7 [ - pinMode(2,OUTPUT);
4 Y# x/ R7 w7 C5 V- j5 |1 g - // WIFI! F# [$ Y R% u1 `! l2 T Y0 U0 m
- WiFi.mode(WIFI_STA);
( U. i! l* D; k. O - WiFi.hostname("Sparkle");0 N) f6 f6 T t
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 Y1 ?! l8 x+ f; r# k4 ? - int tryNum = 15;
0 V4 H+ R5 X( Z2 ? - Serial.print("Connect WiFi");
# [6 z/ v( s4 C9 ? - while (WiFiMulti.run() != WL_CONNECTED) {
; i& q2 K5 n3 Z - digitalWrite(2,0);. R( M* `: z0 b
- delay(200);6 o+ k% b& i' [7 F8 X
- digitalWrite(2,1);# C' y" ?% A' U2 @) c8 p
- delay(300);- t+ n5 h/ h/ U
- Serial.print(".");+ [' }- k4 E( n4 o' G5 g+ _
- tryNum--;
9 g- Q4 j' D) | j- I: @ - if (tryNum == 0) {
5 \ V7 x* M! u' t2 ~0 V - // 1min
8 {: j+ V- `# T# t - // ESP.deepSleep(60e6);- |4 M2 C) L6 w" N' w
- ESP.deepSleep(0);9 N* ?3 z5 e1 _3 Y, s- f
- }0 R& v1 x$ E" O2 f. U
- }
" M9 B* b7 g. R& V! x- i - Serial.print("\r\n");
9 {& M) C" k! g7 ` - digitalWrite(2,1);" r! g/ R3 W% |3 S; {: V, t
- Serial.print("IP address : ");4 @( }. h0 V' D k x8 f7 c
- Serial.println(WiFi.localIP());. a& ?4 S7 l1 U# V; n1 A, T
- server.on("/", HTTP_GET, [](){7 i0 O4 {1 h) R/ b; t
- server.sendHeader("Connection", "close");& l* B$ L9 m' H
- server.send(200, "text/html", serverIndex);6 }* P0 [4 v" W
- });( A/ R7 R8 [8 f0 p7 p
- server.on("/update", HTTP_POST, [](){( X/ n1 s* R2 A% Y- i$ n8 e
- server.sendHeader("Connection", "close");
0 W: Z" m# o, `4 X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. ]9 T' v) k% ]& z
- ESP.restart();, ?( F. r! i% [' O& b# e
- },[](){
( g- I$ ?4 ?: M- q. t - HTTPUpload& upload = server.upload();
+ w/ t5 U# _, @& b( f) L - if(upload.status == UPLOAD_FILE_START){+ b$ Y8 M$ z* n! P n; j
- Serial.setDebugOutput(true);6 ?3 N5 @% ], m" x7 Y0 W
- Serial.printf("Update: %s\n", upload.filename.c_str());
! _5 L+ X/ S/ `2 `& Q: } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: `2 R# T5 G; C4 |3 i" c8 C
- if(!Update.begin(maxSketchSpace)){
R# y; I% ~) h; |# J3 ` - Update.printError(Serial);
) d1 M+ K) ^5 O7 {9 Y% }- V - }5 c, D7 R J( {, i( T- P5 Y
- } else if(upload.status == UPLOAD_FILE_WRITE){ ?* {& ~$ ?3 m* F% F! C& Q. C L
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: I" e7 ?* @) Z# ? W
- Update.printError(Serial);) H% }8 R: R/ w8 ~: I
- }
- ?3 c2 b' G, @; _& I: V% m* D$ I - } else if(upload.status == UPLOAD_FILE_END){2 v% c( N* |) A& t h3 ^
- if(Update.end(true)){
: h0 s, A) b/ ^3 e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 H' Q$ @" j' o% W$ _, r! ?% h - } else {+ X! }5 E! w* k) b7 }5 R
- Update.printError(Serial); z( p0 _) i8 _' y+ z S' t. R
- }/ C7 `' }' {! W
- Serial.setDebugOutput(false);
2 _; A. S$ h8 v P2 U* T: m3 s$ F, J - }
. u& _" r7 ?! b/ n* K6 D& ] - yield();$ c' H) E) N5 W! l- Z& Y
- });/ J+ k* W% m* z
- " W# J! b* h! f- Y1 h# v5 r) N
- digitalWrite(2,0);$ Z4 F3 j" G& m: f# p% e
- mainAction();) d5 @+ |' |7 C1 w- i7 D3 c! B
- if (digitalRead(0)){
. J4 t* a4 v' Y& k" t - ESP.deepSleep(0);
& N& }% H! V( H) H - } else {9 R/ `8 j8 { M
- server.begin();$ }6 @. B6 p; o* s
- }0 t7 k! W2 S: ^/ V3 l
- }! [" I) s% r2 a. B
- void loop() {: l: a% ^! M* `5 U0 o/ \
- server.handleClient();
) z. z7 Y1 t% ]$ k - delay(1);$ u; U3 k2 O; \, p$ J
- }
1 s2 b3 k2 T$ g1 { - String doGet(String url){4 t/ v# F3 Y. m* [# r2 y3 D2 |
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ T, z5 @# r' l - HTTPClient http;
; J @! W# V, C6 y - Serial.println("[HTTP] begin...");# ?2 t$ K6 @4 l Z' }4 M) g8 w5 o
- if (url.startsWith("https")) {
+ Q7 [7 D/ K+ M+ k' O - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ [) U) k% A8 c- `/ m
- } else {
0 B- s) I7 C/ w! `. u! k - http.begin(url);
# s8 N1 o" S, l8 h( D( h2 d1 o - }
8 T# O/ s: Y# Z* `3 ?" [& W) f - Serial.println("[HTTP] GET...");
# p* h9 r# y' n/ J( G - int httpCode = http.GET();
: L% I% a/ h: A" O% B. E - if (httpCode > 0) {
8 b$ r3 C* S: r& @9 N - Serial.printf("[HTTP] code: %d\n", httpCode);% n3 E! I! W# p2 ]1 c0 }& K
- if (httpCode == HTTP_CODE_OK) {5 d4 Y* Q6 `$ w8 Z! i, g
- String payload = http.getString();
7 f# `% ?+ `' P1 `9 c7 g7 U - Serial.println(payload);& f( e& c$ W& f; P. _- K" h
- Serial.print("\r\n");0 O5 k% p1 L7 I5 z4 T
- return payload;
& s/ A6 K* L6 n( Q7 } - }+ D; s: u0 [/ L$ K c
- } else {9 G4 Z) a' r3 H6 |' e1 g
- Serial.printf("[HTTP] GET... failed, error: %s\n",, l( p: D3 ^1 q' `$ R& F$ ?
- http.errorToString(httpCode).c_str());
' C; c: J/ ^% j: t$ A) G - }
K" p0 k! c! P% q% m3 {# U - http.end();6 M+ [6 u) D! V& T
- return "";2 d7 R4 \; o! _! J& W1 n
- }
! N. b0 m3 E: ~( j0 o/ G) l, f - }
* V8 T! V1 e- d$ v* d4 _& ~, C$ Z - void mainAction() {
' s- ~6 b, J1 l5 m3 I9 Q - // 发送请求* Y7 }) _- J) _' A- k/ J9 |
- doGet("http://google.cn");
: o- E) ~) z5 I - }
4 \( [' `' a8 N
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