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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)
9 t i6 k: Q6 k+ i- I- t- #include <ESP8266HTTPClient.h>
% | ?9 E8 s1 N - #include <ESP8266WiFi.h>
C- [1 o4 a" q* V8 U/ s- K+ v - #include <ESP8266WiFiMulti.h>
/ s$ T; [; a. ~( L( q$ r - #include <ESP8266WebServer.h>
% [9 h" B! r) \ - #include <arduino.h>
- m1 j& {, ?- l, h; T - ESP8266WiFiMulti WiFiMulti;4 y1 }3 ]" _& x8 N: c; [
- ESP8266WebServer server(80);
3 P* U5 t* d8 i& x2 ?/ ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 X% W$ m E+ |: G3 \; O; u, G
- ADC_MODE(ADC_VCC);* H+ N" S9 b3 P" w8 G
- void setup() {+ s) ^2 G( s" o
- Serial.begin(115200);8 O$ V( f: \( Y0 a6 Q
- Serial.print("\r\n\n");
6 }& I" d! t6 s4 N - pinMode(2,OUTPUT);. N6 n6 @5 o0 z( L2 E3 b6 q2 a
- // WIFI
6 E; y, h6 D/ B - WiFi.mode(WIFI_STA);
D m* F5 n. @# \( i - WiFi.hostname("Sparkle");8 {# B0 H8 W7 `. k* Q: @. K
- WiFiMulti.addAP("wifi ssid", "wifi password");! ?- O& @3 N4 D
- int tryNum = 15;
+ g. d M1 Z" ?3 M. w) d - Serial.print("Connect WiFi");# r" [+ Q n2 Y- {
- while (WiFiMulti.run() != WL_CONNECTED) {
9 |7 ^2 Z+ O- t - digitalWrite(2,0);3 Z8 Y3 i! k/ f" ~
- delay(200);5 J5 f9 T) x; U) t
- digitalWrite(2,1);9 F0 v* q; _( m4 _
- delay(300);; A+ J/ e/ u8 y4 J
- Serial.print(".");
* `! Y* s# r6 [, u - tryNum--;$ h7 |7 u, s% f" T2 }5 n
- if (tryNum == 0) {
! @/ A& j8 W" |% X7 ~3 a - // 1min
) c6 W2 v' X- m8 G/ M, C& C6 M7 l - // ESP.deepSleep(60e6);
: @4 I0 k. @3 W# H% { - ESP.deepSleep(0);: i! J* s1 U. _+ i
- }" a* Y$ k% X1 h) o7 M* c
- }
* Q" C4 o. w5 o# b! F% Q% @2 w' D! h - Serial.print("\r\n");
E! ?3 J3 ?7 e3 W: F" J- w; w' q1 H - digitalWrite(2,1);7 d& s7 a2 p. g1 }& k8 [% \
- Serial.print("IP address : ");6 O9 X9 l9 n3 f, i3 |5 d
- Serial.println(WiFi.localIP());
$ x H' k6 y3 ~0 x& P - server.on("/", HTTP_GET, [](){
& f. ^. c3 L2 F5 d/ g1 t - server.sendHeader("Connection", "close");
/ A* V; D6 b# n5 x - server.send(200, "text/html", serverIndex);
# d% h1 G% c/ h6 F( t3 r - });
/ c* l) Q1 U6 o5 E5 P6 a, W - server.on("/update", HTTP_POST, [](){
( h3 D5 U* F; h; z - server.sendHeader("Connection", "close");3 U2 |+ p# ^7 ?6 V2 V. K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 t. m9 y+ Z8 j9 T3 ] - ESP.restart();
' x' ~' L- U; p( L; V+ z4 S- I - },[](){& g/ }/ U8 L1 o, Y+ _: A* M4 X
- HTTPUpload& upload = server.upload();
% D9 F, ?; f, i9 Q2 J) e+ } - if(upload.status == UPLOAD_FILE_START){
8 Q3 B& u5 F4 `* }$ J3 E - Serial.setDebugOutput(true);
& x* n% n# }, I' \" p - Serial.printf("Update: %s\n", upload.filename.c_str());* A% M+ @3 J" u- g+ p4 m8 n+ i7 l6 w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% M* _: V7 o6 U
- if(!Update.begin(maxSketchSpace)){
' B, B- x1 x. t - Update.printError(Serial);$ _ a' R# m5 D4 g
- }9 D2 p! e8 T6 B& R8 L2 d" f
- } else if(upload.status == UPLOAD_FILE_WRITE){7 W4 D# D6 @1 }& K1 {5 T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( T% ^, L& l. G
- Update.printError(Serial);9 X2 g( p7 {1 p# A
- }
, P. T a5 r5 M k - } else if(upload.status == UPLOAD_FILE_END){2 c& u' g+ q$ Q- b; E
- if(Update.end(true)){6 K/ g- B9 j2 `$ L; a0 u/ C: i/ C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ r# h6 \8 _; q# M2 I9 g6 W9 H# L
- } else {
- k# }% N+ O# \ - Update.printError(Serial);
( j: |/ y. t8 G# q# W8 Z - }4 ~) j" M7 S6 ^$ v; f
- Serial.setDebugOutput(false);
, U$ Y1 N2 P1 @0 n" m - }9 V; [( c% ^4 o/ V) ^
- yield();
% W7 T$ U7 f4 S" n( {# a( V! h - });5 C$ d* `6 l9 Q9 a
-
/ K7 v% s' L P) @% _/ v+ C+ T - digitalWrite(2,0);
8 @5 C+ e" U7 n3 u- e; \7 ` - mainAction();- e! F$ m% Y7 N% [
- if (digitalRead(0)){- w6 T7 x' u0 L* V( Q
- ESP.deepSleep(0);
# G) o# n1 q/ l8 e. {9 c7 m$ [ - } else {! E$ q4 J- Y8 z) J
- server.begin();
3 S* h+ X9 h0 @# t- }$ O - }' p" P3 c1 m4 e' h e [
- }
+ G4 U& n9 W% c0 U - void loop() {6 v8 |4 D3 c! t8 i& L/ _
- server.handleClient();
9 Y$ r( S" x+ _. l- ~; c - delay(1);
1 E' T# w- k- `+ T% w7 C- N5 [ - }, q+ b* u, ~$ I- |$ ^6 I
- String doGet(String url){$ S& k3 n4 u$ `4 \) ]# R2 p3 K
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 F$ ~2 X, {1 G0 z3 A6 k
- HTTPClient http;
( s( Z; B3 B: @* q7 B' }! S# [& P - Serial.println("[HTTP] begin...");$ X/ u; H2 _5 ^
- if (url.startsWith("https")) {
& U( c! Z% h5 X) q5 i! D0 D, `* X - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 r1 X+ Z! u( u& y% \ c - } else {
. `! J, f4 J/ U - http.begin(url);2 G9 E2 K0 x: p# G
- }
: k) U. L" M1 H* k' V, X - Serial.println("[HTTP] GET...");
% T* B" H5 s9 f- ]$ P - int httpCode = http.GET();/ Y7 V4 n4 t5 x% z# w2 N
- if (httpCode > 0) {
" r0 P" G; H/ K1 T- b - Serial.printf("[HTTP] code: %d\n", httpCode);& V- \* c E* j4 J; M4 \
- if (httpCode == HTTP_CODE_OK) {- O. D# \; P0 r5 V0 R! O+ j
- String payload = http.getString();0 I5 {' M$ G4 U2 I0 M
- Serial.println(payload);
' o2 M; ~/ [( W& Z& ^6 k- ^9 ?& P+ C - Serial.print("\r\n");. m- F9 E3 \' w2 a8 ]) X3 c
- return payload;# ~% M1 m) k2 a4 ^# Q, \) W
- }% t" T& d, E& d
- } else {% Z5 ?5 [% Q3 n8 E
- Serial.printf("[HTTP] GET... failed, error: %s\n",; K J; X& T) o/ x4 ~
- http.errorToString(httpCode).c_str()); L1 A- M/ y+ s
- }
; ~' \$ e% D0 Y) t - http.end();" L+ N/ Q: S7 w& F* j
- return "";
1 P" Y# @4 Q& h* O# E% M7 G- b - }
! B1 H: r2 n7 R( N - }
0 Y4 s9 u k8 i t - void mainAction() {
7 V( F) I0 ?! h0 L3 U/ }# W& J - // 发送请求
; \+ f; b4 z% O! [. o. O - doGet("http://google.cn");
y/ ?3 |1 A# |& d - } o# h7 {8 v$ k6 [2 y, U* n
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